A manufacturer produces widgets that are packaged in boxes of 100. The probability of a widget being defective is 0.021. Find the mean and standard deviation for the number of defective widgets in a box.

Step-by-step explanation:

From the question we are told that:

Sample size

Probability of  a defective widget

Generally the equation for binomial trial is mathematically given by

Since X is binomial random variable with functions of n and p,The equation of mean \=x

  Where

Generally the equation for variance \sigma is mathematically given by

to rewrite a literal equation you may need to divide by a number, or by a variable.

hope i .

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation: