The table below shows the scores on a science test.
John
75 Brett
80
Elizabeth 90
Cindy
100
Jake
75
Kenji
85
Rick
80 Joy
80
Raul
90 Suni
85
The number of standard deviations between a score and the mean score is indicated by a z-score. What was Cindy's
Z-score on the science test?
a. -2.2
C. 16
b. 100
d. 2.2
Answers
Mean is 84
Cindy got a 100
(100-84)/7.35=2.2
D FINAL ANSWER
Based on the test scores of the students, Cindy's z-score on the science test is 2.2
How to determine the z-score of Cindy?We start by calculating the mean of the scores using:
Mean =Sum/Count
So, we have:
Mean = (75 + 80 + 90 + 100 + 75 + 85 + 80 + 80 + 90 + 85)/10
Mean = 84
Using a statistical calculator, the standard deviation is:
Standard deviation = 7.35
The z-score is then calculated using:
z = (x - mean)/standard deviation
Cindy's score is 100.
So, we have:
z = (100 - 84)/7.35
Evaluate
z = 2.2
Hence, Cindy's z-score on the science test is 2.2
Read more about z-scores at:
https://brainly.com/question/25638875
#SPJ2
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Step-by-step explanation:
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Step-by-step explanation:
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Step-by-step explanation:
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Answers
Answer:
the length is 33 feet
Step-by-step explanation:
The computation of the length is shown below:
Let us assume the length be x
So the width be 1 by 3 x
And the area is 363 square feet
So
As we know that
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Answers
Answer:
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Step-by-step explanation:
Given
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[tex]Space = 4.25[/tex]
[tex]Panels = 3[/tex]
See attachment
Required
The area of one panel
From the attachment, the total width is 50.5in.
i.e.
[tex]Total\ Width = 50.5[/tex]
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A.
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B.
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D.
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Answers
Answer:
Option B (16 cm³)
Step-by-step explanation:
GIVEN :-
Both cone and cylinder have same radius and height.Volume of cylinder = 48 cm³TO FIND :-
Volume of coneFACTS TO KNOW BEFORE SOLVING :-
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[OR]
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PROCEDURE :-
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Answer:
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Step-by-step explanation:
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Answer:
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There are 4 weeks in 1 month.
Therefore:
Jonny has $50 in a savings account. Each week, he deposits $13 in the account.
$50 + $13 × 4m
The algebraic expression is given as:
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Jonny's brother has $90 in a saving account.
Each week, he deposits $11 in the account.
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$90 + $11 × 4m
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An algebraic expression to describe how much money Jonny and his brother will have in their accounts after m months is written as:
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Answers
Answer:
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Step-by-step explanation:
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G.
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H.
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A box of 64 shirts will have 8 defective shirts.
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Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Answer:
5 : 4
Step-by-step explanation:
Ratio of juniors to freshmen = 15 : 12
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Answers
Answer:
(4√2cos 135, 4√2sin135)
Step-by-step explanation:
determine two pairs of polar coordinates for the point (4, -4) with
Given the rectangular coordintate
r = √4²+(-4)²
r = √16+16
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Theta = arctan(-4/4)
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theta = 180 - 45
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x = rcos theta
y = rsin theta
x = 4√2cos 135
y = 4√2sin135
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A 1.18 L
B 0.7 L
C 8.3 L
D 17.1 L
Answers
Answer:
the answer is d 17.1 L
Step-by-step explanation: