Dianne has a choice of two routes to drive to work. She timed her journey along each route on several occasions and the times in minutes are given below: Town route: 15, 16, 20, 28, 21 Country route: 19, 21, 20, 22, 18 (i) Calculate the mean and standard deviation (to one d. p.) of each set of journey times. (ii) Which route would you recommend?

Dianne has a choice of two routes to drive to work. She timed her journey along each route on several occasions and the times in minutes are given below: Town route: 15, 16, 20, 28, 21 Country route: 19, 21, 20, 22, 18 (i) Calculate the mean and standard deviation (to one d. p.) of each set of journey times. (ii) Which route would you recommend?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 3GP

See similar textbooks

Related questions

Q: Q/ Let f(x, y) = 4(x + y) 3 5 x is pdf with 1<x<∞ 0≤y<1

A: Given information: fx,y=4x+y5x3, 1<x<∞, 0<y<1

Q: In the vehicle speed test, the results were given in the table below: Find: 1. skew modulus 2.…

A: The objective is to determine Skewness modulus and kurtosis coefficient for the given data:

Q: Exercise 1.7 A red pen and a green pen are put in a hat. A pen is chosen at random in the hat, and…

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

Q: 2. Select B: A card is drawn from a well shuffled pack of 52 cards. Find the probability of: (i) '2'…

Q: Q2/b - Draw the ascending frequency curve of the following frequency distribution table.

A: Given information: categories categories of accumulator bullish Bullish accumulated repeat…

Q: The mean wage per hour for all 5000 employees who work at a large company is $27.50, and the…

Q: 9. Suppose I play a gambling game where I either win or lose k dollars. Suppose further that the…

Q: What is the type of the variable "The names of Kuwaiti hotels"? O a Qualitative - Nominal O b.…

A: Solution-: What is the type of the variable "The names of Kuwaiti hotels"? (a) Qualitative - Nominal…

Q: 92. G and H are mutually exclusive events. P(G) = 0.5 P(H) = 0.3 a. Explain why the following…

A: Solution Given That G And H Are Mutually Exclusive Events. P(G) =0.5 P(H) = 0.3

Q: What is the Sample Skewness for the following numbers: mean of 100.89 , median of 95, and standard…

A: Given mean of 100.89 medianof 95 standard deviation of 52.38

Q: Question 1.16.2 (Markov chains, Part IB, 1991, 307D) Three girls A, B and C are playing table…

Q: > A DJ is preparing a playlist of 20 songs. How many different ways can the DJ arrange the first…

Q: deviation of 4. Use the standard normal table to find the indicated probability for a randomly…

A: The mean is 68 and the standard deviation is 4.

Q: Q3: The annual rainfall was measured in the Western Desert during a period of one year, and the…

A: It is given that the annual rainfall was measured in the Western desert during a period of one year.…

Q: (a) Let A and B be two events. Suppose that the probability that neither event occurs is 3/8. What…

Q: In the vehicle speed test, the results were given in the table below: Find: 1. skew modulus 2.…

A: Required: To find skewness coefficient and kurtosis coefficient of grouped data. Skewness is a…

Q: Find the area of the shaded region. The graph depicts the standard normal distribution of bone…

A: From the provided information, The graph depicts the standard normal distribution of bone density…

Q: There are 54 runners in a race. How many ways can the runners finish first, second, and third? There…

Q: In a sample of 900 U.S. adults, 212 think that most celebrities are good role models. Two U.S.…

A: We have given that Sample of 900 U.S adults 212 think that most celebrety are good role model

Q: A company publishes statistics concerning car quality. The initial quality score measures the number…

A: Dear student according to the guidelines we solve only first three subparts. Given the random…

Q: In a survey of 1001 adults, a polling agency asked, "When you retire, do you think you will have…

A: Given data: n = 1001 X = 530

Q: A............. is a table that shows the number of data observations that fall into specific…

A: We know that, when we have a large amount of data, we split data into several groups and write…

Q: the Western Desert during a period of one year, and the readings in millimeters were as follows:…

A: It is given that the annual rainfall was measured in the Western desert during a period of one year.…

Q: what is the most and least r

A: Cultivars 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00…

Q: 1:A: Two dice are thrown simultaneously. Find the probability of: (1) getting sum ≤ 3 (ii) getting a…

A: Given Two dice are thrown simultaneously

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

Q: The sca... plot shows the time spent studying, x, and the quiz score, y, for each of 24 students.…

A: The only way to establish a relationship between the variables x and y is to have a set of data…

Q: Use the sample information x¯x¯ = 38, σ = 4, n = 11 to calculate the following confidence intervals…

Q: 3. find the posterior distribution for 8, i.e. k(0|x) 4. find the Bayesian estimator for 0, that is,…

Q: Quantitative data are values that are categorical, describing a characteristic such as Colour or…

A: Here use definition of quantitative data Quantitative data are those values which are measurable

Q: Let X, and X, independence r.v. have same moment generating function (1-) where isa, let Y=aX₁…

Q: What is the type of the variable "The average height of students who will enter university in a…

A: Here we have to identify whether the given variable is Quantitative or qualitative

Q: d their driving skills. i. suggest an appropriate null and alternate hypothesis for this study.…

A: i) There is no relationship can be found between driving skills of persons and his/her interest in…

Q: distribution and let Y=2X2-1 X -1 0 1 2 f(X) .1 .2 .4 .3 1) What is the joint distribution…

A: Solution

Q: Can you please explain how you got .235 from the chi-square table? I am having trouble using the…

Q: Q 3:A: An urn contain three red balls,two blue ball and five white balls, A ball is selected and its…

Q: Question 11 -4 Find the area of the shaded region under the standard normal distribution to the left…

A: It is given that the standard normal distribution to the left of given z-score z = 0.48.

Q: bre Two engineering companies have skilled engineers (structural, electrical, and mechanical) as…

A: Given the statement :- Two engineering companies have skilled engineers (structural, electrical, and…

Q: The following data represent weights for 25 items construct a frequency distribution table: 15, 9,…

A: Frequency refers to the number of times an event or a value occurs. A frequency table is a table…

Q: Q1/ A- Represent the following data in a graph using the bar graph method. temperature [ today] 27…

A: Given data: Today Temperature Saturday 27 Sunday 29 Monday 29 Tuesday 30 Wednesday 28…

Q: aph using the bar graph temperature toc

A: The given data is Today Temperature Saturday 27 Sunday 29 Monday 29…

Q: 1x* If the Event A must occur with certainty, then the probability of this event is in between O…

A: Given: If the Event A must occur with certainty, then the probability of this event is in between 0…

Q: If P(B)=0.25,P(A | B)=0.50,P(B′)=0.75,and P(A | B′)=0.90, find P(B | A).

A: We have given that P(B)=0.25 P(A | B) = 0.50 P(B′)=0.75 and P(A | B′)=0.90 We have to find…

Q: What is the type of the variable "Customers' degree of satisfaction with a service (Unsatisfied -…

A: Nominal scalse simply includes name that doesn't have order such as sex (male/female).

Q: Scores on a statistics final in a large class were normally distributed with a mean 73of and a…

A: Mean(µ) = 73Standard deviations (σ) = 7X ~ N (µ, σ )= N(73, 7)

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. CPA HO Actuary 30 40 50 60 70…

Q: Mr. B asserts that fewer than 5% of the battery that he sells are defectives. Suppose 200 battery…

A: Given data: p=0.05 n = 200 X = 8 Significance level = α=0.01

Q: What is the Sample Skewness for the following numbers: mean of 110 , median of 104, and standard…

A: The question is about skewness Given : Mean = 110 Median = 104 Std. deviation = 48.47

Q: What is the Sample Skewness for the following numbers: 146, 140, 102, 59, 79, 60, 71, 74, 94…

A: From the data, x (x-ˉx)=(x-91.6667) (x-ˉx)2=(x-91.6667)2 (x-ˉx)3=(x-91.6667)3 146 54.3333…

Q: A financial services firm is interested in investigating the cost of exporting a company’s products…

A: The given problem is based on one way analysis of variance (ONE WAY ANOVA).

Question

Dianne has a choice of two routes to drive to work. She timed her journey along each route on
several occasions and the times in minutes are given below:
Town route: 15, 16, 20, 28, 21
Country route: 19, 21, 20, 22, 18
(i) Calculate the mean and standard deviation (to one d. p.) of each set of journey times.
(ii) Which route would you recommend? Give a reason.

Expert Solution