The average number of moves a person makes in his or her lifetime is 12. If the standard deviation is 3.2, find the probability that the mean of a sample of 36 people is less than 10.

0.0001

Step-by-step explanation:

The average number of moves a person makes in his or her lifetime is 12.

We want to find the probability that the mean of a sample of 36 people is less than 10, if the standard deviation is 3.2.

We calculate the z-score using the formula:

We substitute the values to get:

We simplify to get;

From the standard normal distribution table we read -3.7 under 5 to obtain the area to the left of -3.75 as 0.0001

answer: a clock

step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b