Twelve batteries were tested to see how many hours they would last The frequency distribution is shown here Hours Frequency 13 1 46 4 79 5 1012 1 1315 1 a Mean b Modal class c Variance d Standard deviation ...

Class X m f f X m f X 2 m cf 1 3 2 1 2 4 1 4 6 5 4 20 100 5 ...

Twelve batteries were tested to see how many hours they would last. The frequency distribution is shown

Question:

Twelve batteries were tested to see how many hours they would last. The frequency is shown here.
Hours Frequency
1–3 ......1
4–6 ......4
7–9 ......5
10–12 .....1
13–15 .....1
a. Mean
b. Modal class
c. Variance
d. Standard deviation Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...