If X~ Exp(2), then what is the exact distribution of Y = e-AX=
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Q: True
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Q: Given the distribution below, what is EX? x P(X=x) -23 0.22 3 0.54 11 0.01 43 0.11…
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A: The boxplot indicates the distribution of wages for the fast food workers at a company.
Q: The balance point of a distribution is the _________
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- Please assist to solve the quetion below: The average wage of data analysts in X Company is $51 per hour with a standard deviation of $21. Suppose we randomly select 36 people, and compute the sample mean. (a) The distribution of sample means is centred at $? and has a standard error of $ ? (b) The probability that the sample mean for these 36 people is less than $48.9 is (c) The probability that the sample mean for these 36 people is more than $56.25 is Thanks.please help!Find the standard deviation for the group of data items (Round to two decimal places as needed.) Stems Leaves 2 6 7 7 6 5 6 3 1 3 1 3one z-score unit is equivalent to ______ of the distribution. a. the variance b. the range c. the standard deviation d. the mean e. the correlation coefficient
- : Which one of the following statements is True? The units of the Variance are the same as the original data. The Mean can be found from a Box Plot. Relative Frequency equals Frequency multiplied by Total Frequency. An Ogive chart increases in height from left to right. For a unimodal mound shaped distribution that is Skewed Left the Mean is greater than the Median.Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 240 feet and a standard deviation of 48 feet. Let X = distance in feet for a fly ball. If one fly ball is randomly chosen from this distribution, what is the probability that this ball traveled fewer than 186 feet? (Round your answer to four decimal places.) ch6#4A sample of n = 6 scores has a mean of M = 5. One person with a score of X= 12 is added to the distribution. What is the mean for the new set of scores? O M= 8
- Thirty percent of people did not visit their doctor's, offices last year. Let x be the number of adults in a random sample of 12 adults who did not visit their doctors’ offices last year. The standard deviation of the probability distribution of x is approximately Could you show the steps and equations used, please?Your Turn: Standardized Scores Scores on the final exam in Ms. Meyer's statistics class follow a normal distribution, with a mean of 82 and a standard deviation of 5. 1. Ron, who took Ms Meyer's class, scored 88 on the final. Ron's z-score is Click to view hint 2. This means that Ron's final score is Click to view hint 3. Dan also took Ms. Meyer's class, and the z-score of his final is -2.4. This means that Dan's score is: Click to view hint 4. Dan's actual score on the final is Click to view hint 5. Julie was assigned to take her statistics class with Mr. Fisher, whose final scores followed normal distribution with mean 75 and standard deviation of 6. Her score on the final was 84. Which of the two scores, Ron's or Julie's, is more impressive? Click to view hìnt CheckSuppose in 2000, the science scores for female students had a mean of 146 with a standard deviation of 35. Assume that these scores are normally distributed with the given mean and standard deviation. _________________ of the female students scored between 76 and 216
- A population has a mean u =78 and a standard deviation o = 24. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 36. H; =(Simplify your answer.) (Simplify your answer.)In a study, 25,000 adults were randomly surveyed as to the number of grandchildren they have, X. The probability distribution is given below. Find the mean and the standard deviation of the probability distribution using a TI-83, TI-83 Plus, or TI-84 graphing calculator. Round the mean to one decimal place and the standard deviation to two decimal places. x P(x) 0 0.01 1 0.02 2 0.02 3 0.24 4 0.35 5 0.20 6 0.07 7 0.05 8 0.02 9 0.01 10 0.01
