Use the cumulative frequency curve for Paper 1 to estimate the median.
From the cumulative frequency curve for Paper 1, estimate the interquartile range.
Use the cumulative frequency curve for Paper 1 to estimate how many candidates scored more than $45$.
A candidate gained $60$ on Paper 1. Using both graphs, estimate that candidate’s mark on Paper 2.
State, with a reason, which paper you think was the more difficult.
Find the value of $x$.
Find the probability that the total value of the two coins chosen is $40$ cents.
Find the probability that the total value of the two coins chosen is $\$1.20$.
At a car park, the fee is $\$1.40$. Amira selects three coins, one after another. Find the probability that the total value of the three coins is $\$1.40$.