Suppose that the speed at which cars go on the freeway is normally distributed with mean 75 mph and standard deviation 8 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. b. If one car is randomly chosen, find the probability that it is traveling more than 72 mph. c. If one of the cars is randomly chosen, find the probability that it is traveling between 77 and 81 mph. d. 84% of all cars travel at least how fast on the freeway? mph.

Solve. In a box of 13 batteries, 8 are dead. You choose two batteries at random from the box. Let the random variable X be the number of good batteries you get. Find the standard deviation of of X. O A. G= 0.659 O B. G = 0.434 O C. o=0.410 O D. o=0.932 O E. o=0.640

Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. Find the probability that a randomly selected thermometer reads between −1.55 and −0.17 and draw a sketch of the region.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...       Sketch the region. Choose the correct graph below.     A.             -0.17-1.55         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the left side. The region between the 2 lines is shaded. Moving from left to right, the z-axis below the first line is labeled negative 1.55. The z-axis below the second line is labeled negative 0.17.   B.               -0.17-1.55         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the left side. Moving from left to right, the regions left of the second line are shaded. The z-axis…

18 men will be tested for the discus throw. if Mu= 112ft and standard deviation= 13ft. find the probability that the mean distance of the group is between 120ft and 150ft

Suppose that you are conducting a survey on how many pets each employee has in his or her household. The mean number of pets is 12 per household, and the standard deviation is 4. Rob only owns cats, and he has 8 cats. Which of the following statements is true? Select the correct answer below: The number of pets owned by Rob is 1 standard deviations to the left of the mean. The number of pets owned by Rob is 1 standard deviations to the right of the mean. The number of pets owned by Rob is 2 standard deviations to the left of the mean. The number of pets owned by Rob is 2 standard deviations to the right of the mean.

Solve the problem.Assume that mountain lions' weights are normally distributed with a mean of 62.6 kilograms and a standard deviation of 2.6 kilograms. If 70 mountain lions are randomly selected, find the probability that they have a mean weight between 61.9 kilograms and 62.8 pounds.

Please answer B, C, & D.

Suppose that the speed at which cars go on the freeway is normally distributed with mean 75 mph and standard deviation 8 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. b. If one car is randomly chosen, find the probability that it is traveling more than 72 mph. re d. 84% of all cars travel at least how fast on the freeway? mph.

Suppose that the speed at which cars go on the freeway is normally distributed with mean 71 mph and standard deviation 10 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N 71 10 b. If one car is randomly chosen, find the probability that it is traveling more than 70 mph. c. If one of the cars is randomly chosen, find the probability that it is traveling between 73 and 76 mph. d. 69% of all cars travel at least how fast on the freeway? mph.

Suppose that the speed at which cars go on the freeway is normally distributed with mean 79 mph and standard deviation 9 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible.b. If one car is randomly chosen, find the probability that it is traveling more than 75 mph.  c. If one of the cars is randomly chosen, find the probability that it is traveling between 78 and 81 mph.    d. 60% of all cars travel at least how fast on the freeway?  mph.