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GCSE (1 – 9) Averages from Frequency Tables

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GCSE (1 – 9) Averages from Frequency Tables

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Questions and Answers

What is the mean number of points scored per game in the first table?

1.9

1.7

1.8 (correct)

2.0

If the football team scored a total of 55 goals, what is the value of x in the second table?

18 (correct)

What is the median number of goals scored by the team in the third table?

2.5

1.5

1 (correct)

What is the mode of the number of goals scored by the team in the third table?

1 Signup and view all the answers

What is the total number of goals scored by the team in all 38 games in the third table?

72 Signup and view all the answers

If the median of the goals scored is 1, what fraction of the games did the team score 2 or more goals?

$\frac{17}{38}$ Signup and view all the answers

What is the estimated mean maximum temperature based on the given frequency table?

21°C Signup and view all the answers

What percentage of people traveled for more than 30 minutes to the event?

47% Signup and view all the answers

Which class interval contains the median travel time to the event?

30 < t ≤ 40 minutes Signup and view all the answers

What is the estimated mean travel time to the event?

31 minutes Signup and view all the answers

What is the modal class interval for the hours of homework done by students?

3 to 5 hours Signup and view all the answers

What is the estimated mean number of hours of homework done by students?

7 hours Signup and view all the answers

What is the modal class interval for the heights of Adam's tomato plants?

170 < h ≤ 180 Signup and view all the answers

If the heights of Adam's tomato plants are grouped into classes of equal width, what is the class width?

20 cm Signup and view all the answers

Why is the estimate for the mean height of Adam's tomato plants an estimate and not an exact value?

The heights are grouped into class intervals, so the exact values are not known. Signup and view all the answers

What is the class interval that contains the median time for the 20 people to run 5 km?

25 < t ≤ 30 Signup and view all the answers

What is the estimate for the mean time taken by the 20 people to run 5 km?

25.0 minutes Signup and view all the answers

If the maximum temperatures in September are grouped into classes of equal width, what is the class width?

10°C Signup and view all the answers