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Related Questions
Every quarter, the Food and Drug Administration (FDA) produces a report called the Total Diet Study. The FDA's report covers a variety of food items, each of which is analyzed for potentially harmful chemical compounds. A Total Diet Study reported that no pesticides at all were found in % of the domestically produced food samples. Consider a sample of food items analyzed for the presence of pesticides. Complete parts a and b. a. Compute and for the random variable x, the number of food items found that showed no trace of pesticide. nothing (Type an integer or a decimal.)
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Answer:
a) Mean = 600
Standard deviation = 12.24
B)No it is not likely because our probability of no pesticide is 75% which means that more than half of food items are without any pesticide
Step-by-step explanation:
Total number of food items = 800
We are given that no pesticides were found at all in 75% of domestically produced food samples.
So, Probability of success = p = 0.75
Probability of failure = q = 1-p = 1-0.75=0.25
Now we are supposed to find [tex]\mu[/tex] and [tex]\sigma[/tex] for random variable x
a) Mean = E(x)= [tex]n \times p = 800 \times 0.75=600[/tex]
Standard deviation =[tex]\sqrt{npq}=\sqrt{800 \times 0.75 \times 0.25}=12.24[/tex]
b)Is it likely that you would observe fewer than half of the food items without any traces of pesticides ? Why or why not ?
No it is not likely because our probability of no pesticide is 75% which means that more than half of food items are without any pesticide
Bone-shaped treats are 5 for $3.50 at Shelley’s store and Sarah wants to buy 12. She set up and solved this proportion to find how much they would cost. Describe her error and find the correct solution.
5
3.5
=
12
x
3.5x = 60
x = $17.15
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Answer:
Sarah multiplied the denominator by the denominator and the numerator by the numerator instead of finding the cross products. The equation should be 5x = 42, so the cost should be $8.40.
Step-by-step explanation:
In the figure below, if the measure of an angle is 1=37, and angle 1 is congruent to angle 3, what is the measure of angle 4? asap :( <3
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Answer:
∠ 53°
Step-by-step explanation:
[tex]Hope\\This\\Helps[/tex]
0.2-0.3 what is the midpoint?
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Answer:
0.25
Step-by-step explanation:
seven children the School bus yo school some more children. walked to school there are 13. children ay. school how many. children. walked to school?
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Answer: 6 kids walked to school
Step-by-step explanation:
Since there are 13 kids altogether and 7 rode the bus, it can be solved using subtraction.
13 - 7 = 6
Help ? anybody ion know any of these I’m sorry please give me the correct answer .
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Since we have the answers, we can just go through the numbers and substitute them for x and see if we get 23.
Starting with your answer, you said the answer was 3.
If we substitute all the x’s with 3, then we end up with 23 if we add all the sides.
(This means your original answer, 3 , is correct.)
Audrey deposits $27 in her account. Then she makes two withdraws one for $15 and one for 12. What is the total change to the balance of Audrey's account? Explain
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Which expression is equivalent to 42 + 63?
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Answer: 104-63 maybe?
Step-by-step explanation:
24+26
[tex]25 + 52[/tex]
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If combined then 127
the sum of 8 and 7 double
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Answer: 30
Step-by-step explanation:
(8+7) x 2
= 15 x 2
= 30
Find the 2nd term in the expansion of (1+3y)5
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Step-by-step explanation:
Using pascal's triangle;
Then second term of the expansion (1+3y)5
is given as:
5(1)^4(3y) = 15y
Answer:
15y
Step-by-step explanation:
market research firm conducts telephone surveys with a historical response rate. What is the probability that in a new sample of telephone numbers, at least individuals will cooperate and respond to the questions
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Answer:
0.8461
Step-by-step explanation:
The question didn't state any value, so I assumed some of my own.
You can check your notes, and change the values to that of your own, it's the same method.
Given that
The market research firm conducts survey with 40% historical response rate.
The total number of sample is used is 400
The total number of individuals expected to cooperate is 150
What is the probability that the sample proportion would be 150/400 or 0.375..
See attachment for calculation.
I don’t understand this question.
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Answer:
-7.89 is the answer
mark me the brainlets
Step-by-step explanation:
help me plzzzzzzzzzz
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Answer: A
Step-by-step explanation:
I think A
If the sum of three consecutive numbers is 738, what is the middle one?
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Answer:
The logical answer is 246
Step-by-step explanation: So, (X+1)+ (X+2) + (X+3)=738 then 3x+3=738 so x=245. 245 is the first number so then the answer is 245+246+247=738. And that leads to the conclusion that the middle number is 246.
When are `x+2` and `3x` equal?
ARE THEY EQUAL?
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Answer:
but tbh this equation cannot be equal
Step-by-step explanation:
Answer:
No, they are not equal, because you can not add x to 2, because it does not have an x after the 2, so they are not the same
Step-by-step explanation:
Which kind of line ( solid or dashed) is used for < or > ?
I think it has to do with inequalities but not sure
QUESTION #2 unless you know how to a different one
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Answer:
dashed lines are used for both < and >, solid lines are used for >= or <=
Step-by-step explanation:
what is the slope of the line
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Answer:
Rise/Run = up 3 over 1 = 3/1 (m = 3)
Step-by-step explanation:
Learn this stuff it is very important for future math
Which of the following is a cost homeowners insurance does not protect?
a. The cost of repair or replacement of a home lost in a natural disaster.
b. Additional living expenses required while your home is repaired after a disaster.
c. Replacement costs for all contents in your home, including high cost electronics.
d. The cost of medical expenses incurred by somebody getting injured on your property.
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Answer:
Replacement costs for all contents in your home, including high cost electronics. In my case it was C on edge
Step-by-step explanation:
The solution is, c. Replacement costs for all contents in your home, including high cost electronics, is a cost homeowners insurance does not protect.
What is insurance?Insurance is an arrangement by which a company or the state undertakes to provide a guarantee of compensation for specified loss, damage, illness, or death in return for payment of a specified premium.
here, we have,
Personal property replacement cost endorsement under her homeowners policy comes with limits of the policy that only covers insurance on replacement cost for structural damage and damages or loss of materials of similar kind and quality.
Some items such as art items, paintings, an antique chair, jewelry and collectibles are not usually listed in the policy contract except a scheduled personal property coverage is added to the Personal property replacement cost endorsement contract.
Therefore, from this question, The solution is, c. Replacement costs for all contents in your home, including high cost electronics, is a cost homeowners insurance does not protect.
To learn more on insurance click:
https://brainly.com/question/15177441
#SPJ7
HELP ME get the altitude!!!!!
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Haley makes a total of $400 a part-time job over a two week period. The first week she makes $20 more than her second weeks paycheck. How much money did she make each week
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Answer: on the first week she earned 220$ and on the second week she earns 200$
Step-by-step explanation: Haley makes a total of 400$ in a week. divided by 2 would equal 200$ each. but Haley made an extra 20$ in the first week. so, 200$+20$=220$.And the two combined is 420$.
Please help ASAP ! Find the expressions for the perimeter of these shapes.
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Answer:
Quest 1. P = 3xat2 + 4yat2 + 11xy
Quest 2. P = 7xat2 + 21x + 5y + 5
Step-by-step explanation:
Note: Perimeter, P is the total sum of the distance round about an object. that at symbol cant be used here.so.am.using at2 for squared
a=
b=
c=
d=
e=
f=
g=
h=
i=
j=
?
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sharon drops a rubber ball from a height of 160 feet every bounce sends the ball half as high as it was before what is the total vertical (up and down ) distance the ball has traveled from the mament it is dropped to the moment it hits the floor for the fourth time
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Answer:
10 feet.
Step-by-step explanation:
First time: 160/2=80.
Second time: 80/2=40.
Third time: 40/2=20.
Fourth time: 20/2=10.
Boom.
The points (0.5,1/2) and (7,1 2/5) are on the graph of a proportional relationship what is the constant of proportionality name one more point on the graph write an equation that represents the proportional relationship
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Answer:
wait do you have a picture of a graph so i can understand more correcctly
Step-by-step explanation:
find the quotiont463 divided by 6
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Answer:
The answer is 77.1666666667
Step-by-step explanation:
If you use a calculator and type in 463 / 6 it will equal 77.1666666667
(/ = divide)
I hope this helped! :)
What is the answer in a short sentence
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Answer:
HI
Step-by-step explanation:
Consider the relationship between the words pine and tree Which answer choice contains a pair of words with the same relationship? A. book: title B. hook: instrument C. badger: animal D. head: scarf
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Answer:
Maybe it's C.
Step-by-step explanation:
Answer:
ti is A BOOK TITLE
Step-by-step explanation:
Find the measure of the indicated angle.
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Answer:
I believe it could be 25
Step-by-step explanation:
Eight angle = 90
1. 38 + 27 = 65
2. 90 - 65 = 25
I haven't done angles for a long time, but I hope my memories serves well. Sorry if it may be wrong, but this is what I remember from doing angles in Year 7
What is an equation of the line passes through the points (-6,2) and (6,-2)?
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Answer:
The equation for the question above is y = -1/3x.