In Exercises 39 − 42 , use the following information: To determine the effect their salespeople have an purchases, a department store polled 700 shoppers regarding whether or not they made a purchase and whether or not they were pleased with the service they received. Of those who made a purchase, 151 were happy with the service and 133 were not. Of those who made no purchase, 201 were happy with the service and 215 were not. Use probability rules (when appropriate) to find the probability of the event stated. a. A shopper made no purchase and was unhappy with the service. b. A shopper made no purchase or was unhappy with the service.
In Exercises 39 − 42 , use the following information: To determine the effect their salespeople have an purchases, a department store polled 700 shoppers regarding whether or not they made a purchase and whether or not they were pleased with the service they received. Of those who made a purchase, 151 were happy with the service and 133 were not. Of those who made no purchase, 201 were happy with the service and 215 were not. Use probability rules (when appropriate) to find the probability of the event stated. a. A shopper made no purchase and was unhappy with the service. b. A shopper made no purchase or was unhappy with the service.
Solution Summary: The author analyzes the probability of a shopper making no purchase and unhappy with the service.
In Exercises
39
−
42
, use the following information: To determine the effect their salespeople have an purchases, a department store polled
700
shoppers regarding whether or not they made a purchase and whether or not they were pleased with the service they received. Of those who made a purchase,
151
were happy with the service and
133
were not. Of those who made no purchase,
201
were happy with the service and
215
were not. Use probability rules (when appropriate) to find the probability of the event stated.
a. A shopper made no purchase and was unhappy with the service.
b. A shopper made no purchase or was unhappy with the service.
Explain the key points and reasons for 12.8.2 (1) and 12.8.2 (2)
Q1:
A slider in a machine moves along a fixed straight rod. Its
distance x cm along the rod is given below for various values of the time. Find the
velocity and acceleration of the slider when t = 0.3 seconds.
t(seconds)
x(cm)
0 0.1 0.2 0.3 0.4 0.5 0.6
30.13 31.62 32.87 33.64 33.95 33.81 33.24
Q2:
Using the Runge-Kutta method of fourth order, solve for y atr = 1.2,
From
dy_2xy +et
=
dx x²+xc*
Take h=0.2.
given x = 1, y = 0
Q3:Approximate the solution of the following equation
using finite difference method.
ly -(1-y=
y = x), y(1) = 2 and y(3) = −1
On the interval (1≤x≤3).(taking h=0.5).
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