Question

The distribution of the number of blocks a young child can stack before their tower falls is approximately Normally distributed with a mean of 12.7 blocks and a standard deviation of 1.4 blocks. If 6 of the child’s towers are randomly selected, what is the probability that the mean number of blocks is more than 11 blocks? 0.0015 0.1123 0.8877 0.9985

Answer 1

Add them together and then divide by the number of numbers

like this:

joe had 7 beans

eric had 5

julie had 2

add them

you get 14

now divide by 3

4.6 with a bunch of 6

Answer 2

Answer:

0.9985

Step-by-step explanation: