6, The test scores of 40 students are summarized in the frequency distribution below. Find the mean. one decimal place. Score | Students 50-under60 6. 60-under 70 9. 70-under 80 14 80-under 90 90-under 100 74.0 13.2 12 11.3

Q: The estimated distribution (in millions) of the population by age in a certain country for the year…

A: Formula Used: Mid Point = Lower limit + Upper limit2 Sample Mean X = ∑FXn Sample standard deviation…

Q: This data represent the age distribution of a sample of 100 people covered by health insurar…

A: data: Age ( classes) number (f) 25-34 23 35-44 29 45-54 28 55-64 20

Q: In the diagram, about 68% of the scores fall within the shaded area, which is symmetric about the…

A: For 68%; Range can be given as Mean +/- SD

Q: 4. Using the frequency distribution table below, what is the proportion of individuals that scored a…

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Q: 1. Here is a sample of ten grades on a Math exam: 71, 73, 77, 85, 86, 88, 88, 93, 94, 95. Find the…

A:

Q: 3) Find the mean, standard deviation, and the five-number summary for the following (use a…

A: Given a data : X= 2,4,7,8,12,13,13,16,23,23,25,26,27,27,38,39,47,55 We have to calculate the mean…

Q: Provide an appropriate response. The test scores of 40 students are summarized in the frequency…

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Q: Given the frequency table below of the students result in 25 point quiz. Compute its mean.

A: Let x denotes the class mark and f be the frequency. The mean can be calculated as Mean = ∑f.x /∑f

Q: The cumulative relative frequency graph shows the distribution of the percent of foreign-born…

A: z score is values is shows us how many number of standard deviations away from the mean , i.e below…

Q: 5. The following figures refer to the times (in minutes) that eight customers spent from the time…

A: We have given that,  The data set of 8 customers spent time is,  6, 3, 2, 10, 2, 5, 4, 6 Then,  We…

Q: a) At an influenza immunization clinic at a retirement community, residents were asked in how many…

A: a) To construct the frequency distribution, first sort the data in ascending order than form the…

Q: 1a. The distribution of the mark scored by three candidate in a professional examination are 54, 24,…

A: 1a. Given The data is as follows: 54, 24, 36

Q: The estimated distribution (in millions) of the population by age in a certain country for the year…

A:

Q: 42 40 40 30 31 20 13 10 3 80 90 100 110 120 130 140 150 160 IQ Scores 60 70 (a) How many students…

A: We have given that the frequency histogram represents the IQs scores of a random sample of 7th…

Q: there are 26 students took the exam, the table below shows the frequency distribution s of their…

A: Given information: There are 26 students who took the exam.  The frequency distribution of the…

Q: The time (in minutes per day) spent on social media of a random sample of adults are shown in the…

A: We have given that data  Time (minutes per day) Frequency 1 – 99 25 100 – 199 16…

Q: Provide an appropriate response. The test scores of 40 students are summarized in the frequency…

A:

Q: The mean height of 50 students of a college is 5'-8". The height of 30 of these is given in the…

A:

Q: 5. The following figures refer to the times (in minutes) that eight customers spent from the time…

A: We have given that,  The data set is,  6, 3, 2, 10, 2, 5, 4, 6 Then,  We will find the mean and mean…

Q: Homework (1) Q5: Using the histogram shown here, do the following. 7 6 2+ 21.5 24.5 27.5 30.5 33.5…

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Q: Construct a frequency distribution with the first class of 58 – 64 for the following data:

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Q: The mean range of the sample {5. , 1, 4.2, 1.1, 0.5, 3} is or is obtained through the expression: A,…

A:

Q: 10. A group of customer service surveys were sent out at random. The scores were 90, 50, 70, 80, 70,…

A: 10. The group of customer service centres scores are, 90,50,70,70,60,20,30,80,90 and 20 The mean of…

Q: 30. In a frequency distribution the coefficient of skevwness based on quartiles is 0.6. If the sum…

A: Obtain the values of upper and lower quartiles.   The values of upper and lower quartiles are…

Q: 3. Using the data from Exercise 1, construct a frequency distribution for trauma. a. What level of…

A: Given a data table of race ,class ,trauma

Q: Find the mean of the data summarized in the given frequency distribution. The heights of a group of…

A: Ans#- Calculate Mean from the following grouped data Height Frequency 70 - 71 1 72 - 73 4…

Q: The frequency distribution shown in the figure lists the number of hours per day a randomly selected…

A: From the provided information, The total number of teenagers = 10 + 32 + 24 + 25 + 18 + 22 + 8 = 139…

Q: Class 366-386 387 - 407 408 - 428 429 - 449 450 - 470 471 - 491 492 512 513 - 533 Frequency 5 2…

A: Solution-: We have following frequency distribution table: Class  Freq (fi) 366-386 5 387-407…

Q: 2. Given the data set 4,10,7,7,6 ,9,3,8,9 Find a) the mode, b) the median, c) the mean, d) the…

A:

Q: he frequency distribution shown in the figure lists the number of hours per day a randomly selected…

A: Given frequency distribution is,   Hours per day Number of teenagers 0≤x≤1 10 1≤x≤2…

Q: 5. The scores on a chemistry test were: 85, 72, 99, 81, 77, 93, 100, 75, 86, 70, 96, 80 a) Construct…

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Q: Commuting Miles Frequency 0-under 4 3 4-under 8 10 8-under 12 12-under 16 16 16-under 20 20-under 25…

A:

Q: The ages of the 112 people who have a car injured are classified as follows: Class Frequency 0- 9 10…

A: The average comes under the concept of measure of central tendency. This average is used to…

Q: 11: For the following data, a) mean b) mode c) median

A: Given that  The data are 55,57,59,58,60,57,56,58,61,58,59 Note: According to bartleby experts…

Q: Q2 (c): According to the above frequency distribution table, the :value of mean deviation (MD) is

A: here given grouped frequency distribution

Q: Ninety five cities provided information on vacancy rates (in percent) in local apartments in the…

A: Measure of central tendency - Measure of central tendency comprises of various tools used to predict…

Q: Q.6. The median of the following incomplete frequency distribution is 4, what is the frequency of 8?…

A:

Q: A group of friends get together every Sunday for a little pick-up hockey.  The age of the 20…

A: Age of the 20 regular little pick-up hockey 21 25 26 46 28 22 42 38 22 38 49…

Q: An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as…

A: Use the given data to form the excel table:   Scores x-x x-x2   1 -6 36…

Q: b) Find the mean and the standard deviation of the times in the following table. Because the table…

A: Given information: 52, 51.08, 49.29, 48.88, 48.83, 48.65, 48.83, 48.25, 49.11, 49.41, 49.62 and…

Q: TT Calculate the median from the following data, if the mean value is 45. Marks No. of Students…

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Q: 5. The sales of two stores are given below, find out the combined mean of both the stores.

A: For store 1, number of observations n1 = 9 For store 2, number of observations, n2 = 6

Q: Fortune Magazine reported the earnings of the 33 largest industrial corporations in US way back in…

A: Since you have posted a question with multiple subparts, we will solve the first three complete…

Q: ind the mean, median, mode of the distribution below: Class limits 5.1-5.4 10 4.7-5.0 20 4.3 - 4.6…

A: See the handwritten solution

Q: Students in a statistics class answered a quiz question and the time it took each to complete it was…

A:

Q: Create a frequency distribution table, if possible, for the following data below. Then, find the…

A: The frequency distribution table helps to tabulate the individual observations in a class interval…

Q: The following data gives the highest points scored by a player in a given year from 2000 to 2009:…

A:

Q: 5. Given below are the marks of 69 students. Find out the median value. Mark in test (median class)…

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Q: The arithmetic mean height of 50 students of a college is 5'8". The height of 30 of these is given…

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Q: are 32.1 and 35.4 respectively. Find out the value of median. Example 8. In a moderately…

A: Givenin a asymmetrical distributionMode=32.1Mean=35.4

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.