answer numbers 1,2,3,4,5,6,7,8,9 write the correct letter for each number answer it all 1. The height in meters that a pole vaulter can clear in his final attempt is an example ofC. Discrete Random VariableA. Probability DistributionB. Continuous Random VariableD. Probability Mass Function2. Which of the following is a probability distribution?A. x |5 10 15 20P(x) 0.5 0.3 0.4 -0.2C. x| 1 2 3P(x) 2/5 1/5 6/5 3/54B. x 10 100 1000 10000P(x)|0.21 0.13 0.56 0.01D. x|0 2 4 6P(x)|1/2 1/8 1/4 1/83. Five balls numbered 0, 2, 4, 6, and 8 are placed in a bag. After the balls are mixed, one is selected, itsnumber is noted, and then it is replaced. If this experiment is repeated many times, what is thevariance? The probability distribution is provided below.number on ball, X| 0 2 4 6 SP(x)|1/5 1/5 1/5 1/5 1/5А. 2В. 4C.6D. 84. Find the mean of the number of spots that appear when a die is tossedA. 2В. 2.5C. 3D. 3.5For numbers 5 to 7,At a convenience store, the number of visitors per hour is distributed as shown.x | 8 9 10 11 12P(x) 0.15 0.25 0.29 0.19 0.125. Find the mean.A. 9.88В. 10.82C. 8.24D. 10.566. Determine the variance.A. 2.35В. 1.51C. 3.08D. 2.91 7. Solve for the standard deviation.A. 1.53B. 1.23C. 1.75D. 1.71For numbers 8-9,The IQ scores of a large group of students are approximately normally distributed with a mean of 100and a standard deviation of 15.8. When a random chosen student from this group will have an IQ score whose corresponding z-score isnegative; what is expected with IQ score of the chosen student?C. It is equal to the mean of 100.D. It is not equal to the mean of 100.A. It is higher than the mean of 100.B. It is lower than the mean of 100.9. The z-score of a random variable of a given distribution that is assumed to be normally distributed is1.38. Which of the following is true?I. The random variable corresponding to the given z-score is greater than the mean.II. The random variable corresponding to the given z-score is 1.38 units away from the mean.III. The probability of the random variable is 41.62%.A. I onlyB. II onlyC.I and IID. I, II, and III

Name: answer numbers 1,2,3,4,5,6,7,8,9 write the correct letter for each num
Uploaded: 2024-03-05T11:53:49.000Z
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Description: answer numbers 1,2,3,4,5,6,7,8,9 write the correct letter for each number answer it all 1. The height in meters that a pole vaulter can clear in his final attempt is an example ofC. Discrete Random VariableA. Probability DistributionB. Continuous Ran