The amount of money spent on a week’s holiday by 40 students, correct to the nearest £10, is shown below   180 190 170 210 190 160 210 180 240 130 190 150 200 210 160 200 180 130 210 180 200 190 220 170 230 270 180 220 200 210 140 210 150 200 210 190 200 170 210 180     (a) Group the data into classes of width £20 starting with 120-139, 140-159 and so on.     (b) What is the modal class?   (c) Using the grouped frequency distribution you found in part (a), estimate the mean and standard deviation of the data.

Q: please help me find, The relative frequency of workers who took 10 or fewer sick days, The…

A: Given that  Number of days = X Frequency = F 1-5 120 6-10 65 11-15 14 16-20 1

Q: can you find the mean of 60 people in this table

A: Know that  Mean = sum of all observations/total number of observations  Sample size n=60

Q: The managers of a brokerage firm are interested in finding out if the number of new clients a broker…

A: BrokerNew…

Q: he following data gives the monthly electric bills (in pesos) of 18 residents of Quezon City 1364…

A: Given n=18

Q: Here is a data set: 165 174 280 178 188 199 198 179 259 160 251 283 246 280 142 204 78 321 191 139…

A: The question is about grouped frequency distribution Given :

Q: Use the following table below to answer the 5 (five) questions below: Gender / Student Type…

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

Q: The monthly wags and cost of living index numbers for each year 1995 to 2000 are given below: Year…

A:

Q: The managers of a brokerage firm are interested in finding out if the number of new clients a broker…

A: import pandas as pdimport numpy as npimport statsmodels.api as smfrom statsmodels.stats.stattools…

Q: For this grouped data set: Scores      |      Frequencies 30-34        |      7 25-29        |…

A: Given data : Scores Frequencies 30 - 34 7 25 - 29 9 20 - 24 14 15 - 19 10 10 - 14 8 5…

Q: According to the Miriam Webster dictionary the average or arithmetic mean of number is: "a value…

A: The Arithmetic mean or simply the mean or the average  is the sum of a collection of numbers divided…

Q: Calculate crude birth rate of the town. People living in a town are grouped according to their age…

A: Solution: The formula for crude birth rate is  CBR = b/P×100 b= total no of live births in a give…

Q: the income (000) of two villages are given below: Village 1 50 80 70 60 78 123 30 47 41…

A: Given the income (000) of two villages as Village 1 50 80 70 60 78 123 30 47 41 Village 2 25 35…

Q: The following data gives the monthly income (in thousand of rupees) of female and male urses of a…

A: From the given data we the average incomes of males and females as S.No.  Female Male 1 46 34…

Q: (a) How many classes are in the histogram for the Five-Year Rate of Return data when the "Starting…

A:

Q: What is the test statistics? From the problem in the picture

A: Given - n1=20, x1=8.2, s1=5.9n2=30, x2=5.6, s2=5.7

Q: Calculate arithmetic mean from the followin Income in Below10 10-20 20-30 30-40 40-50 50-60 above 60…

A:

Q: 62. Minimum wage. Refer to the table in Problem 61. (A) How many females are of age 16-19 and earn…

A: Solution: From the given data, We are about to solve question 62 only as you mentioned. Using the…

Q: Find the cumulative frequency and relative cumulative frequency and construct the Ogive for each of…

A:

Q: During one shift, the express lane clerk recorded how many times customers violated the "10 items or…

A:

Q: From the following data construct the index numbers by Kelley's weighted aggregative method. Items…

A:

Q: The table below shows average annual tuition and fees charged by American colleges and universities…

A: NOTE: Since we only answer up to 3 subparts , we will answer the first 3. Please resubmit the…

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is…

A: Given data was collected for 300 fish from the north atlantic. the length of the fish(in mm) is…

Q: The department of health studied the number of patients who need liver transplantation. The…

A:

Q: Population Region Asian Black White Total North 1400 1300 9 50 850 4500 500 100 800 South 450 200…

A: Given Information: Consider the given table:   Population Region Asian Black White Total…

Q: Prove the relation between arithmetic, geometric and harmonic mean for the following data Classes…

A: The given data is, Classes F 0-95 102 100-195 192 200-295 230 300-395 300 400-495 139…

Q: For the following data (6, 6, 2, 2, 4, 4, 8, 2) , the mode equal 6 and 2 O 6 and 4 O 6 and 4 and 2 O…

A:

Q: from the following table, estimate the number of student who obtainbed marks between 40 and 45.…

A:

Q: Below is a set of training examples for predicting house prices from several factors: House Size…

A: house sizeno of roomhouse ageHouse Price100035095080024075010203301250750220780950310820

Q: Independeг ent t-test. Directions: Analyze if there is significant difference between the two sets…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Identify the following variables as categorical or numerical. (c) The age of children in months who…

A: Definition  Categorical data Nominal data: Nominal data measure qualitative data and it is the name…

Q: Find by interpolation the number of policies in fotet in 1972 from the following data : : 1969 1970…

A:

Q: the class width for distribution, the midpoint of first class, and the number of workers who took…

A: Given data of the number of sick days taken by 200 factory workers: Number of days Frequency…

Q: The department of health studied the number of patients who need liver transplantation. The…

A:

Q: A researcher wanted to know what factors determine a state public employee’s annual salary;…

A: From the given information, the variables are: annual salary, gender, years of service and years of…

Q: Construct chain Indices from the data given below taking 1990 as the base ver 1990 1991 1992 | 1993…

A:

Q: Example 8. A textile worker in the city of Taxses earns $3,500 per month. The cost of living index…

A:

Q: The following table provides information on the number of claims (in 1 000s), as well as the average…

A: Data is given for 2003 and 2006 We have to calculate laspeyres quantity index  Base year 2003

Q: Use the table to answer the following questions.      Year U.S population  (millions)  Traffic…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Calculate the arithmetic mean of income.

A: here given,  n = 10 xi   = monthly income of employee

Q: Order the steps of finding the class boundaries of the following set of data: 8 10 15 18 11 22 10 14…

A:

Q: This question is not on any test. The table below shows the number of people for three different…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…