Question

1. The table shows the number of miles

two salespeople drove each day for work
last week.
Mr. Smith
128
150
118
85
166
Miles Driven
Day Ms. Johnson
Mon.
115
Tue.
97
Wed.
86
Thu.
48
Fri.
181
Sat.
127
25
Select THREE sentences that are true.
A. Mr. Smith drove 6 miles per day
more than Ms. Johnson.
B. Ms. Johnson drove 3 miles per day
more than Ms. Johnson.
C. A reasonable prediction is that both
salespeople will drive about 80 miles
each day.
D. A reasonable prediction is that both
salespeople will drive about 110
miles each day.
E. If both salespeople work 250 days
this year, they will drive about
20,000 miles for this year.
F. If both salespeople work 250 days
this year, they will drive about
27,500 miles for this year.

Answer 1

(B)Mr Smith drove 3 miles per day more than Ms. Johnson.

(D) A reasonable prediction is that both salespeople will drive about 110

miles each day.

(F)If both salespeople work 250 days this year, they will drive about

27,500 miles for this year.

Explanation:

Given the miles driven by the two salesman.

Mr Smith

128 , 150 , 118 , 85 , 166 and 25

`\text{Average miles per day}=(128+150+118+85+166+25)/(6)=(672)/(6)\\=112$ miles per day`

Ms. Johnson

115,97,86,48,181 and 127

`\text{Average miles per day}=(115+97+86+48+181+127)/(6)=(654)/(6)\\=109$ miles per day`

Therefore:

(B)Mr Smith drove 3 miles per day more than Ms. Johnson.

(D) A reasonable prediction is that both salespeople will drive about 110

miles each day.

`112 \approx 110$ miles per day\\109 \approx 110$ miles per day`

(F)If both salespeople work 250 days this year, they will drive about

27,500 miles for this year.

110 X 250=27,500 miles