Foundation January 2020 Paper 2R Q2
2 Egor rolled a dice 24 times.
Here are his results.
| 2 | 3 | 5 | 4 | 6 | 2 |
| 1 | 3 | 3 | 5 | 1 | 3 |
| 3 | 5 | 5 | 6 | 2 | 5 |
| 4 | 3 | 4 | 3 | 3 | 4 |
(a) Complete the frequency table for Egor’s results.
(2)
| Number on dice | Tally | Frequency |
|---|---|---|
| 1 | ||
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
(b) Write down the mode of the numbers that Egor rolled. (1)
Egor thinks the dice he rolled is biased.
(c) Give a reason why the results could show that the dice is biased. (1)
| Scheme | Marks |
|---|---|
| Frequencies and tallies of 2, 3, 8, 4, 5, 2 | B2 |
| (2) |
Notes
B2: All frequencies and tallies correct
B1 for 3, 4 or 5 frequencies or tallies correct
NB. Frequencies and tallies must be in the correct column. Accept 2/24 etc. in frequency column
| Scheme | Marks |
|---|---|
| 3 | B1ft |
| (1) |
Notes
B1ft: Follow through from table
| Scheme | Marks |
|---|---|
| Sensible statement | B1 |
| (1) | |
| (4 marks) |
Notes
B1: Not enough 1’s or 6’s
Too many 3’s
Rolled a 3 a third of the times
Should expect to get 4 of each number