An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the probability that the sum of the 95 values is less than 7,350. (Round your answer to four decimal places.)

Find the range, the standard deviation, and the variance for the givien samples. Round non integer results to the nearest tenth. 2 ,6,8,10,12,15,17

please solve : B, C, and D     ch 9

Which of the two samples in each set has the higher standard deviation. Answer this question by looking at the data without any computation. Explain your reasoning for each answer. Set 1 – Sample A: 16, 16, 16, 16, 16 – Sample B: 20, 20, 20, 20, 20 Set 2 – Sample A: 16, 16, 16, 16, 16 – Sample B: 15, 16, 16, 16, 16 Set 3 – Sample A: 20, 25, 25, 25, 30 – Sample B: 15, 25, 25, 25, 35 Set 4 – Sample A: 20, 20, 30, 40, 40 – Sample B: 20, 25, 30, 35, 40

You draw a card from a deck. If you get a red​ card, you win nothing. If you get a​ spade, you win ​$6. For any​ club, you win ​$12 plus an extra ​$20 for the ace of clubs. Find the standard deviation of the amount you might win drawing a card.

Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 80, 82, 78, 45, 58, 52, 99, 86, 73

Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard deviation of 1.00°C. A thermometer is randomly selected and tested. Draw a sketch and find the temperature reading corresponding to P34, the 84th percentile. This is the temperature reading separating the bottom 84% from the top 16%. Click to view page 1 of the table. Click to view page 2 of the table. Which graph represents P ? Choose the correct graph below. 84 A. В. OC. D. Ay X The temperature for P84 is approximately (Round to two decimal places as needed.)

The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.