A set of quiz scores is shown in the histogram below. The mean of the data set is 50.7, and the (population) standard deviation is 2.0. 47 48 49 50 51 52 53 54 55 How many numbers in the data set are within 1 standard deviation of the mean? O 14 O 15 13 O 16 O O O

Q: n a final examination in mathematics, the mean was 72 and the standard deviation was 15. Determine…

A: Given : On the final examination in Mathematics ; Mean (μ) = 72 Standard deviation (σ) = 15 Let X be…

Q: *The data show the number of patients in a sample of ten hospitals who acquired an infection while…

A:

Q: The mean of a data set is 20 and the standard deviation is 2. What percentage of data value will…

A: Given  Mean=20, sigma=2 P(12<X<28)= ?

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: Given that ; X represents the number of adults in groups of five who reported sleepwalking P(x) is…

Q: 4. The lowest and the highest data value of a data set are 12 and 28 respectively, then the…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A:

Q: = 6 , Σ ? = 33, Σ ?2 = 199.

A: given n = 6 ∑x = 33 ∑x2 = 199

Q: Using the sample data in Table 1 above, determine the standard deviation of the daily consumption of…

A: The question is about grouped freq. dist. Given :

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: The value of sample mean is,

Q: The mean and standard deviation of a population are 200 and 20, respectively. Suppose samples of…

A: We have given that, Population mean (μ) = 200, standard deviation (σ) = 20 and sample size (n) = 36…

Q: In my homework assignment, I have a concern about standard deviation do I have to round it to two…

A: Rounding-off must always be done as per the instruction in the  question. In the absence of an…

Q: Consider the following sample data Sample A: 10, 17, 24 Sample B: 68, 75, 82 Sample C: 1,035, 1,042,…

A: given that Sample A 10, 17, 24 Sample B 68, 75, 82 Sample C 1035, 1042, 1049

Q: The following set of data shows the scores of 25 students in a 100-item test in Philosophy. 46 64 72…

A: c) Here, x x-x (x-x)2 46 -28 784 49 -25 625 53 -21 441 60 -14 196 61 -13 169 64 -10…

Q: The annual salaries of a group of employees are given in the following table: Salaries '000) : 45 50…

A: We have given that,  x f 45 3 50 5 55 8 60 7 65 9 70 7 75 4 80 7 Then,  We…

Q: 3. A student obtained the following scores in twelve 100-item assignments: 93 91 90 86 86 94 97 90…

A: According to the descriptive measure the standard deviation is quite low for the scores of the 100…

Q: Given that the mean of a data set is 20, and the standard deviation of this data set is 8, then what…

A: Solution : Given : μ = 20             σ = 8             X = 40 The value of Z-score can be computed…

Q: The marks achieved by Aicheiah in Mathematics, Science, and English, together with the mean and the…

A: The given information is: Subject Mark Mean Standard deviation Mathematics 60 52…

Q: The test scores for a math class are shown below. 81, 85, 82, 93, 85, 84, 95, 87, 88, 91 36. What is…

A: Given data set, 81,85,82,93,85,84,95,87,88,91 Standard deviation=?

Q: Given a set of data that is skewed-right, there is at least % of the data within 3 standard…

A: Given

Q: The standard deviations of four data sets are shown in the table below. Which of the data sets is…

A: We have given  The standard deviation of four data set  And we want to find which one is most spread…

Q: For the sample below, 84 45 73 58 54 73 52 60 51 80 Determine the Standard Deviation. Round off your…

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Q: Given a set of scores below, write down the scores one, two, and three standard deviations above the…

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Q: consider the data given and find standard deviation below Scores Comulative frequency o- 4 5-9 4 10…

A: Given data is scores cumulative frequency 0-4 1 5-9 4 10-14 12 15-19 21 20-24 30…

Q: I have a statistics the question which on the attached image.

A: A) The mean of the data can be obtained as:

Q: d. What is the modal score of the given set of data? e. What is the standard deviation? f. Other…

A: Given that, The frequency distribution table as follows: Class Frequency 46-50 1 41-45 2…

Q: Given the mean of GRE scores is 150 and the standard deviation is 8.8. What proportion of combined…

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Q: Using Chebyshev's rule, at least what percent of the distribution lies between 3 standard deviations…

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Q: The standard deviation of the following data set is: 2,5,9, 7 O 5.57 O 2.99 O 7.07 O 8.92

A: #Given, data  set      2,5,9,7   Now  mean x=2+5+9+74=234=5.75

Q: A set of data is collected as follows: 55 34 67 83 21 98 63 72, the sample standard deviation of…

A:

Q: Find the mean and the mean deviation about mean from the following frequency distribution : Weight…

A: Mean deviation about mean : the mean of absolutely the values of the numerical variations between a…

Q: figure the standard deviation of the distribution of means for a population with a standard…

A: Population standard deviation is given and sample standard deviations have to be calculated for…

Q: :When a distribution is bell-shaped, approximately what percentage of data values Will Fall within 3…

A: We have to find correct answer.

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: Given information- We have given the table which shows the number of hours spent watching TV last…

Q: The weights, in pounds, of a group of dogs are:          18, 31, 22, 46, 55, 28.    Calculate the…

A: When ever we are dealing with sample data , we divide variance with N-1

Q: Which is the largest with regard to the following data set: the range or the standard deviation? 11…

A: We have given that,  X :- 11, 11, 12, 12, 12, 12, 13, 15, 17, 22, 22, 22 Then,  We will check which…

Q: The scoring averages (points per game) of the starting lineup of a basketball team are as follows:…

A: The provided scoring averages of the starting lineup of a basketball team are  x x2 6.2 38.44…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A:

Q: PLEASE SHOW WORKING     Based on the data set below, what is the standard deviation? 28…

A: we hope the last data value is 4 only (not a double digit value?)

Q: In Exercises, determine the range and sample standard deviation for each of the data sets. For the…

A: The data contains the number of tornados that touched down in the United States during each month of…

Q: For the data shown, answer the questions. Round to 2 decimal places. 27.8 24.3 22 9.3 28.2 27.2 3.1…

A: Mean = 21.28

Q: Given the set of data below, find the standard deviation.   25, 16, 50, 19, 42, 37         A) 6.07…

A: Solution Number of samples (n) = 6 X X2 25 625 16 256 50 2500 19 361 42 1764 37 1369

Q: Using your calculator, find the range and standard deviation, round to two decimals places! The…

A: Given data set: 85, 33, 60, 45, 53, 46, 58, 47, 22, 44, 71, 83, 62, 79, 43, 36, 56, 39, 65, 36, 81,…

Q: Analyze the following data. Assume the true value of L (the length of a table) is 93.40cm. L(cm)…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: (a) In the calculation of which of the following summary statistics, all the data in the data set…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Complete the table below and find the range, IQR, and the standard deviation of the following data.…

A: Given data, 17,12,20,24,28,30

Q: For the data shown, answer the questions. Round to 2 decimal places. 12.9 19.6 4 24.7 8.6 26.6 11.2…

A:

Q: For the data from a sample shown below, answer the questions. Round to 2 decimal places. 10.4 3.6…

A: We have to find the mean, median and standard deviation.

Q: A standardized test has a mean of 88 and a standard deviation of 12. What is the score at the 90th…

A:

Q: A standardized memory test has a mean of μ=100 and a standard deviation of σ = 10. Answer the…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: The numbers examined, the mean weight and the standard deviation in each group of examination and…

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.