Distribution: [1,1,4,4,5] What is the standard deviation of this distribution? A/
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Q: how has the z score been calculated in this, please don't use z table
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Q: A class distribution is normal with mean of 75 and a standard deviation of 10. Find the following…
A: Given data; Mean = 75 Standard deviation = 10 To find: P(X ≥ 90) = ?
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![Distribution: [1,1,4,4,5]
What is the standard deviation of this distribution?
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- Normal distribution with a mean of 930, standard deviation of 130, random sample of 20What is the 90th percentile of their mean scores?FINALS Exam D Munimuni - Sa'yo (Lyric Vide X urses/63035/assignments/1441620?module_item_id%3D2210251 Score: 6/50 9/39 answered Question 17 く The lengths of pregnancies in a small rural village are normally distributed with a mean of 258 days and a standard deviation of 14 days. In what range would we expect to find the middle 95% of most lengths of pregnancies? Between and days Check AnswerDistribution: [1,1,4,4,5] What is the sum of squared deviations for this distribution? A/
- statistic normal distributionThe Normal Distribution The average bmi (body mass index) of 500 college students is 25, with a standard deviation of 5. (A) How many students have a bmi between 22 and 29? (B) How many students have a bmi of more than 29? (C) How many students have a bmi of less than 22? (D) What level of bmi would put you in the bottom 10% of the weight distribution? Top 10%?Scores on the SAT exam approximate a normal distribution with a mean of 600 and a standard deviation of 80. Use the distribution to determine (z- score must be rounded to the two decimal places): The z-score for a SAT score of 470 The percent of SAT scores that fall above 750 The probability for a SAT score that fall below 800 The percentage of SAT scores that fall between 525 and 570
- The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 265 days and a standard deviation of 11 days. (a) What is the minimum pregnancy length that can be in the top 9%of pregnancy lengths? (b) What is the maximum pregnancy length that can be in the bottom 3%of pregnancy lengths? (a) The minimum pregnancy length is ________ days.Show complete solutionCoefficient of variation of two distributions are 60 and 70, and their standard deviation are 21 and 16 respectively. What are their arithmetic means? (a) 35,20 (c) 30, 22.85 (b) 35,22.85 (d) 30, 20
- Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 164 adult males, the pulse rates have a standard deviation of 9.5 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.) ***This C The weight of an organ in adult males has a bell-shaped distribution with a mean of 310 grams and a standard deviation of 40 grams. Use the empirical rule to determine the folowing (a) About 99.7% of organs will be between what weights? (b) What percentage of organs weighs between 230 grams and 390 grams? (c) What percentage of organs weighs less than 230 grams or more than 390 grams? (d) What percentage of organs weighs between 270 grams and 430 grams? (a) and grams (Use ascending order.) (b)% (Type an integer or a decimal.) (c) % (Type an integer or a decimal.) (d) % (Type an integer or decimal rounded to two decimal places as needed.) Enter your answer in each of the answer boxes. e Type here to search 近The average length of the fish caught in Vernal Lake is 11.8 inches, with a standard deviation of 3.4 inches Find the probability that a fish caught there will be longer than 16 inches. The probability that a fish will be longer than 16 inches is ( Round to three decimal places as needed .)
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