PROBLEM NUMBER 9 For a brand of light bulb, the probability density function of the life span of the light bulb is given by the function below, where t is in months. f(t) = {0.04e & ift 20 = < (a) Verify that f (t) is a probability density function. (b) What is the probability that a light bulb will have a life span less than 8 months? (c) What is the probability that a light bulb will have a life span more than 20 months?

Q: sin:

A: This question is based on Partial diffrentiation.

Q: How do I solve this ?

A: Inverse property

Q: I do not understand the solution or how it came about. I want to learn how to do this problem

A:

Q: How do I solve this?

A: given number of people probability 1 0.25 2 0.32 3 ? 4 ? 5 0.07 6 0.03 7+ 0.01…

Q: Can you present the solution in a different format. I do not understand what the solution is…

A: Let's solve given diffrential integration.

Q: There are 66 bulbs in a house out of which 13 are defective. If 22 bulbs are picked at random, find…

A: Given that  Total bulbs=66 Defective bulbs=13 Not Defective bulbs=53 22 bulbs are selected at random…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 45 subjects were treated with…

A: a. The best point estimate is 5.4 mg/dL. The best point estimate for the population mean net change…

Q: Solve and show work 5x=42x-1

A:

Q: image of the solution is cropped at the bottom. can you send it again please

A: The image of the solution is not cropped. The solution is correct.

Q: How do you solve this problem?

A:

Q: What are the steps to solving this problem?

A: COst function C(x) = 0.001x3+0.2x2+38x+250where x = no. of items producedNow, if x = 30 then C(x) =…

Q: don't understand how I'm supposed to solve this question.

A: Basic concept of discrete probability distribution are used

Q: please explain how to solve this problem

A: *used power rule

Q: Hey can you show the solution in a piece of paper or some sort of visual?

A:

Q: How do I solve this ?

A:

Q: How do I solve this ?

A:

Q: Can you please show how to solve for x and y in step 4.

A: We have to solve for x and y value given in step 4.

Q: how do i solve this?

A: Given that: The table ,

Q: How do I solve this?

A: Consider the given functions

Q: One card is drawn from deck of 52 cards, each of the 52 cards being equally likely to be drawn. Find…

A:

Q: could you please work the solution out on paper please?

A: The given integral is cos4x.

Q: I am not sure how to even go about solving this.

A: The following is the formulae to calculate Weighted Average (W)…

Q: Can you help me solve #5

A: Given: function and interval.

Q: Solve for all parts.

A:

Q: How many types of equations are present?

A: There are mainly five types of algebraic equation, dignified by the position of variables, types of…

Q: Can you explain why you used the certain equations?

A: The solution given by an Expert is correct

Q: How do I solve this?

A: 1,2,3....,23,24,25 are called element of set S.  Hence, set S has 25 element which mean n(S) = 25…

Q: Evaluate B²-A if possible.

A:

Q: Part D is missing. Can you please solve it

A: