Question

Find the variance of the following data. Round your answer to one decimal place. x 7 8 9 10 11 P(X=x) 0.1 0.1 0.3 0.2 0.3

Name: find the variance of the following data round your answer to one decimal place x 7 7 8 8 9 9 10 10 11 11 pxx p x x 01 01 01 01 03 03 02 02 03 find the variance of the following data round your answer
Uploaded: 2023-07-09T09:42:17-08:00
Duration: 2 min 18 s
Channel: Oluwadamilola Ameobi
Description: find the variance of the following data round your answer to one decimal place x 7 7 8 8 9 9 10 10 11 11 pxx p x x 01 01 01 01 03 03 02 02 03 find the variance of the following data round your answer

          Find the variance of the following data. Round your answer to one decimal place.

x 7 8 9 10 11
P(X=x) 0.1 0.1 0.3 0.2 0.3

Added by Ardreanna P.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Oluwadamilola Ameobi

07/09/2023

Step 1

The expected value E(X) is calculated as follows: E(X) = Σ [x * P(X=x)] = (7*0.1) + (7*0.1) + (8*0.1) + (8*0.1) + (9*0.3) + (9*0.3) + (10*0.2) + (10*0.2) + (11*0.3) + (11*0.3) = 9.4 Show more…

Show all steps