A teacher summarizes grades on an exam by,Min = 26, Q1 = 67, Q2 = 80, Q3 = 87, Max = 100, Mean = 76, Mode = 100, Standard deviat

Question

3 months ago

14

ion = 76, IQR = 20She incorrectly recorded one of these. Which one do you think it was? Why?

1 answer:

chubhunter [2.5K] · Answer 1 · 2024-07-16T14:59:36+03:00

5 0

we have

Min=26

Q1=67

Q2=80

Q3=87

Max=100

Mean=76

Mode=100

standard deviation=76

IQR=20

so

In this problem

the mean is equal to the standard deviation

therefore

<h2>The standard deviation is incorrectly</h2>