4. Last month, Nancy purchased gasoline from 3 different gas stations. The following table shows the price perlitre and the number of litres of gasoline that she purchased. Determine the average price per litre that NancyGas StationHuskyEssoShellpaid for the gasoline last month.Price per Litre ($) Number of Litres Purchased1.60201.30501.4030a) $1.38f) $39.3023b) $1.4083g) $32.3256c) $40.4819h) $39.5181d) $1.40) $1.39e) $1.43i) $1.36675. Suppose you are given the question: "At Max tire sales, the 5% of the tires they sell are defective. If 8tires are drawn randomly from the inventory, what is the probability that 2 of them are defective?" Ifyou had to answer this question, what type of distribution should you use?a) Discrete uniform probabilityb) Poisson Probability Distributionc) Binomial Probability Distributiond) Hypergeometric Probability Distribution 1. Suppose that the mean of A is 360 and the standard deviation of A is 40. The mean of B is 45 and thestandard deviation of B is 5? Which statement below is true?a) A has a more dispersed distribution than Bb) B has a more dispersed distribution than A.c) A and B are equally dispersed.2. The scatter diagram depicts 7 sample points for the pair, price and quantity.Given this scatter diagram, the correlation coefficient must be:a) close to zeroPrice (S/unit)b) close to 1c) close to 2d) close to -1e) close to -2f) close to 0.5g) close to -0.5h) equal to 1) equal to -1j) equal to 2k) equal to -28060402020408060Quantity (units)3. The annual interest rates earned over the last 3 years were 15%, 27% and 1%. Given this information,what was the average annual interest rate over this period?a.0.14333 or 14.333%b. 0.21454 or 21.454%c.0.13835 or 13.835%d. 0.21118 or 21.118%nited States)

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1. Suppose that the mean of A is 360 and the standard deviation of A is 40. The mean of B is 45 and the standard deviation of B is 5? Which statement below is true? a) A has a more dispersed distribution than B b) B has a more dispersed distribution than A. c) A and B are equally dispersed.

1. Suppose that the mean of A is 360 and the standard deviation of A is 40. The mean of B is 45 and the standard deviation of B is 5? Which statement below is true? a) A has a more dispersed distribution than B b) B has a more dispersed distribution than A. c) A and B are equally dispersed.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Concept explainers

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.

Question

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4. Last month, Nancy purchased gasoline from 3 different gas stations. The following table shows the price per
litre and the number of litres of gasoline that she purchased. Determine the average price per litre that Nancy
Gas Station
Husky
Esso
Shell
paid for the gasoline last month.
Price per Litre ($) Number of Litres Purchased
1.60
20
1.30
50
1.40
30
a) $1.38
f) $39.3023
b) $1.4083
g) $32.3256
c) $40.4819
h) $39.5181
d) $1.40
) $1.39
e) $1.43
i) $1.3667
5. Suppose you are given the question: "At Max tire sales, the 5% of the tires they sell are defective. If 8
tires are drawn randomly from the inventory, what is the probability that 2 of them are defective?" If
you had to answer this question, what type of distribution should you use?
a) Discrete uniform probability
b) Poisson Probability Distribution
c) Binomial Probability Distribution
d) Hypergeometric Probability Distribution

1. Suppose that the mean of A is 360 and the standard deviation of A is 40. The mean of B is 45 and the
standard deviation of B is 5? Which statement below is true?
a) A has a more dispersed distribution than B
b) B has a more dispersed distribution than A.
c) A and B are equally dispersed.
2. The scatter diagram depicts 7 sample points for the pair, price and quantity.
Given this scatter diagram, the correlation coefficient must be:
a) close to zero
Price (S/unit)
b) close to 1
c) close to 2
d) close to -1
e) close to -2
f) close to 0.5
g) close to -0.5
h) equal to 1
) equal to -1
j) equal to 2
k) equal to -2
80
60
40
20
20
40
80
60
Quantity (units)
3. The annual interest rates earned over the last 3 years were 15%, 27% and 1%. Given this information,
what was the average annual interest rate over this period?
a.
0.14333 or 14.333%
b. 0.21454 or 21.454%
c.
0.13835 or 13.835%
d. 0.21118 or 21.118%
nited States)

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