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lapo4ka [179]
3 years ago
7

Using the following intervals for the scores on a 30-point quiz, how many x's would fall over the interval of 19-21 on a line pl

ot?
Scores: 21, 27, 20, 29, 23, 21, 21, 27, 26, 25

Intervals: 19-21, 22-24, 25-27, and 28-30

A.1

B.4
Mathematics
1 answer:
VikaD [51]3 years ago
7 0

Answer:

B. 4

Step-by-step explanation:

Interval: 19-21

Scores that are between 19 and 21 are underlined:

Scores in order: <u>20, 21, 21, 21</u>, 23, 25, 26, 27, 27, 29

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Answer:

Step-by-step explanation:

To find the population variance, we first need the mean:

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(4-7.2)^2=10.24\\(6-7.2)^2=1.44\\(8-7.2)^2=.64\\(9-7.2)^2=3.24\\(9-7.2)^2=3.24

Add together those numbers and divide them by 5:

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2 years ago
What’s the correct answer ???
Svetlanka [38]
The correct answer is the second one
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3 years ago
If F denotes a temperature in degrees Fahrenheit and C is the same temperature measured in degrees Celsius, then F and C are rel
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Step-by-step explanation:

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