# Answer on Statistics and Probability Question for Sumendra

Question #40820

a. The amount of time that the battery of a certain brand of computer functions is a random

variable with mean 12 hours and standard deviation of 1.5 hours. A random sample of 45

batteries of a certain brand of computer is selected from a normal population. Let X be the

mean time of the battery of a certain brand of computer functions. Find

i. the mean and the standard deviation of X . [3 marks]

ii. the probability that 11.99 < x < 12.02. [3.5 marks]

[Note: Leave all the calculations in 4 decimal places.]

variable with mean 12 hours and standard deviation of 1.5 hours. A random sample of 45

batteries of a certain brand of computer is selected from a normal population. Let X be the

mean time of the battery of a certain brand of computer functions. Find

i. the mean and the standard deviation of X . [3 marks]

ii. the probability that 11.99 < x < 12.02. [3.5 marks]

[Note: Leave all the calculations in 4 decimal places.]

Expert's answer

Dear visitor

Unfortunately, your question requires a lot of work and cannot be done for free. Please submit it with all requirements as an assignment to our control panel and we’ll assist you

Unfortunately, your question requires a lot of work and cannot be done for free. Please submit it with all requirements as an assignment to our control panel and we’ll assist you

Need a fast expert's response?

Submit orderand get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

## Comments

## Leave a comment