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The monthly mean salaries and standard deviations of four college students are given below.

Standard Deviation

12.53

Student

Clarissa

Abi

Kaila

Shenika

Mean

$345

$598

$812

$208

8.99

15.29

7.67

Which statement must be true?

O The monthly salary of Shenika is less spread out than the monthly salary of Clarissa,

O The monthly salary of Kaila is less spread out than the monthly salary of Abi.

O The monthly salary of Abi is less spread out than the monthly salary of Shenika.

O The monthly salary of Clarissa is less spread out than the monthly salary of Abi.

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Answer: The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.

Step-by-step explanation:

Standard deviation measures the spread around the mean of the different variables.

Shenika's monthly salary has a standard deviation of 7.67 while Clarissa has a standard deviation of 12.53. This means that Shenika's monthly salary is less spread out than the monthly salary of Clarissa.

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