A discrete random variable Y has probability distribution given in the table below. Y 1 2 3 P(Y=y) 0.3 a a) Given E(Y) =1.5, find the value of a and b. answer, a=0.6 & b=0.1 b) Calculate P (Y > 1). answer =0.4 c) Compute E (Y) and variance of Y. answer, E (y2) = 2.7 & variance y =0.45 d) Calculate V (3Y+2).

Q: Kyle earns $85 a week. How much will he earn in 14 weeks?

A:

Q: A cup of coffee is taken out of a room and taken to the backyard where the ambient temperature is…

A:

Q: Sam ate 2 corn dogs and 5 caramel apples at the fair. If corn dogs cost $2.25 each and caramel…

A: Given sam ate 2 corn dogs => cost = 2*2.25 = 4.5$ sam ate 5 caramel apples => cost = 5*0.95=…

Q: many calories did fred consume if he ate 6 pancakes

A: Given query is to find the calories consumed by Fred.

Q: A bag of candy has 20 m&m’s for ever 18 skittles. How many m&m’s if there are 54 skittles?

A: consider the equation

Q: Randi and Thanh went picking strawberries. Randi picked 121 fewer strawberries than Thanh did.…

A: given  randi picked 121 fewer strawberries than thanh did together they picked 235 strawberries let…

Q: Point Qwas rotated about the origin (0, 0) by 1809 Y

A: Here we have to find the image of point Q.

Q: Two students were walking to school one day when they saw two teachers each walking with two dogs.…

A:

Q: Substitute and simplify the expression a +6 + b for a = -36 and b = -3. Show all of your work.

A: Kindly go through the solution and let me know in case of any doubt or further clarification in the…

Q: A basketball player scored 19 times during one game. She scored a total of 27 points, two for each…

A:

Q: Madelyn's cat eats 1.5 cans of food daily. The food costs $0.99 per can. How much money does Madelyn…

A: Given that Madelyn's cat eats 1.5 cans of food daily. The food costs $0.99 per can. To find money…

Q: +b); A= 135, B = 10, b = 5

A:

Q: C 15 10 D B 14 A

A: Given Data  CE = 15 DE = 10AB = 14BC = ?

Q: Bob bought 22 chickens. Each chicken weighs 3.5 pounds. The chickens cost bob $99.33. How much did…

A: Find the solution below

Q: mixes 1/6 cup of blue paint for every 1/3 cup of red paint to make purple paint. How many cups of…

A: Given query is to find the amount of red paint to be mixed.

Q: A student assistant at the university copy center has some nickles and dimes to use for change when…

A: Explained below...

Q: What score must a learner earn on the ACT composite test in order for the score to be at the 87.49th…

A: To convert given ACT percentile into ACT score.

Q: 10; ten 100 --- * hundred O hundreds handred

A:

Q: Ben needs to convert $500 US dollars to the Japanese Yen. One American dollar is worth 123.3 Yen.…

A: Given that Ben have  $500. The objective is to convert US dollars to Japanese Yen. It is given that…

Q: The bottoms numbers -4,2,-2

A:

Q: Vong grilled 21 burgers for the block party. He grilled the same number of pounds of turkey burgers…

A: Given, Vong grilled 21 burgers for the block party. He grilled the same number of pounds of turkey…

Q: Find $Y if y = x-3 x -7 ond X=2++1 %3D

A:

Q: Christo and Aris had 207 marbles. Christo bought another 12 marbles and Aris gave his brother 12…

A: An algebraic expression is obtained by combining numbers and variables together with arithmetic…

Q: Bryce measured the floor of his storage unit, which is

A: The floor of his storage unit, which is

Q: There are m male students in the Business Maths class. This is 35 more than four times the number of…

A:

Q: Matthew is laying tiles in the kitchen. Each tile covers 515 square inches of space. He plans to…

A: Number of tiles required =Total area of the wallArea one tile covers

Q: Please answer (D) on this page.

A: In question data is given :  True positive (TP) = 28 False Positive (FP) = 23 True negative (TN) =…