Math Answers

the probability of observing defective item in a lot is 0.01.suppose 25 items are inspected from the lot,what is the probability that not more than 3 defective are found, exactly 4 defective are found.(max 1024)

Select the most correct meaning of the following equation in words (𝑦1 − 𝑦2)/( 𝑥1 − 𝑥2)

[1] change in 𝑦 over change in 𝑥

[2] change in 𝑥 over change in 𝑦.

[3] change in 𝑥 over change in 𝑥 and change in 𝑦 over change in 𝑦.

[4] change in the y-value over change in the x -value.

A random sample of size 36 was taken from the population with a mean of 3.4 and a variance of 4. Approximately the probability that the sample mean is greater than 3.0 but less than 3.6

let B={1-t,t-t²,2-2t+t²} be an ordered basis for p₂

let p(t)=3+t-6t²

1. find [p(t)]_B

Let the set U = {1, 2, 3, 4, 5}, be the universe. Let Y = {(n+2)| n = 2, 3} 5 and X = {3, 4}. Write the following sets using set builder notation

given a population of 2000 normally distributed stores with mean equal to 74, and a standard deviation of 6. How many scores are between 50 and 70?

1.      What is the value of x after each of these statements is encountered in a computer program, if x = 1 before the statement is reached?

a)      if x + 2 = 3 then x := x + 1

The mean gasoline computation of 10 cars is 28 liters with a standard deviation of 1.60 liters. Find the point and the interval estimate using 95% confidence level, what is the confidence level

The weight of 1000 children average 50 kg and the standard deviation is 5kg. What is the Area under the normal curve that corresponds to the z-score of 55

kg?

If 𝑃(𝑍 < 2) = 0.9772, what is 𝑃(𝑍 ≤ 2)?