A café owner records the number of hours of sunshine and the number of ice-creams sold for 10 days. The results are shown in the table. Day 1 2 Hours of 12 0 sunshine Number of 150 5 ice-creams sold 160- 140- 3 3 35 35 120 100- Number of ice-creams 80- sold 60- 40- 201 0 4 5 6 7 8 9 10 6.5 6 4.5 4 8 10 5 86 +2 72 X ☑ * 56 56 38 38 * 120 127 74 4 6 8 10 12 14 16 Hours of sunshine (a) Complete the scatter diagram. The first 8 points have been plotted for you. (b) What type of correlation is shown on the scatter diagram? (c) On the scatter diagram, draw a line of best fit. (d) The weather forecast predicts 7 hours of sunshine for tomorrow. Use your line of best fit to estimate the number of ice-creams that will be sold tomorrow.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 8P
Question

WHAT ARE THE CORRECT ANSWERS AND SOLUTIONS?

A café owner records the number of hours of sunshine and the number of ice-creams sold for 10 days.
The results are shown in the table.
Day
1
2
Hours of
12
0
sunshine
Number of
150
5
ice-creams sold
160-
140-
3
3
35
35
120
100-
Number of
ice-creams
80-
sold
60-
40-
201
0
4 5
6
7
8
9
10
6.5
6
4.5
4
8
10
5
86
+2
72
X
☑
*
56
56
38
38
*
120
127
74
4
6
8 10
12
14
16
Hours of sunshine
(a) Complete the scatter diagram.
The first 8 points have been plotted for you.
(b) What type of correlation is shown on the scatter diagram?
(c) On the scatter diagram, draw a line of best fit.
(d) The weather forecast predicts 7 hours of sunshine for tomorrow.
Use your line of best fit to estimate the number of ice-creams that will be sold tomorrow.
Transcribed Image Text:A café owner records the number of hours of sunshine and the number of ice-creams sold for 10 days. The results are shown in the table. Day 1 2 Hours of 12 0 sunshine Number of 150 5 ice-creams sold 160- 140- 3 3 35 35 120 100- Number of ice-creams 80- sold 60- 40- 201 0 4 5 6 7 8 9 10 6.5 6 4.5 4 8 10 5 86 +2 72 X ☑ * 56 56 38 38 * 120 127 74 4 6 8 10 12 14 16 Hours of sunshine (a) Complete the scatter diagram. The first 8 points have been plotted for you. (b) What type of correlation is shown on the scatter diagram? (c) On the scatter diagram, draw a line of best fit. (d) The weather forecast predicts 7 hours of sunshine for tomorrow. Use your line of best fit to estimate the number of ice-creams that will be sold tomorrow.
Expert Solution
steps

Step by step

Solved in 2 steps with 4 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
Elementary Algebra
Elementary Algebra
Algebra
ISBN:
9780998625713
Author:
Lynn Marecek, MaryAnne Anthony-Smith
Publisher:
OpenStax - Rice University
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,