A rice retailer asserts that the average expiry of her Cindy Rice is 60 months. However, the expiry guarantee on this brand is for just 36 months. Suppose the standard deviation of the life length is known
to be 10 months, and the frequency distribution of the life-length data is known to be bell-shaped.
a. Approximately what percentage of the retailer’s grade A batteries will last more than 50
months, assuming the rice retailer’s assertion is true?
b. Approximately what percentage of the retailer’s Cindy Rice will last less than 40 months,
assuming the manufacturer’s claim is true?
c. Suppose her Cindy Rice lasts 37 months before expiry. What could you infer about the
retailer’s assertion?

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column