Each person was asked if they wanted to stand or to sit to watch the match.
75 of the people were female 29 of the males wanted to stand 30 of the people wanted to sit
(a) Use this information to complete the frequency tree.(3)
One of the 120 people is chosen at random.
(b) Write down the probability that this person is a male who wanted to stand. (1)
Mark scheme (a)
Answer
Mark
Mark scheme
male 45: sit 16, stand 29 female 75: sit 14, stand 61
C1
starts to interpret information eg 75 or 29 in the correct place
C1
for \(120 - 75\ (= 45)\) and \(\text{``}45\text{''} - 29\ (= 16)\)
C1
Complete and correct frequency tree
Additional guidance
May be seen as numerators of fractions for the first 2 marks.
Could be seen in working or on the diagram
Mark scheme (b)
Answer
Mark
Mark scheme
\(\dfrac{29}{120}\)
B1
for \(\dfrac{29}{120}\) or ft “29” from part (a)
Additional guidance
Accept any equivalent fraction, decimal form 0.24(166...) or percentage form 24(.166.. ) Ignore subsequent incorrect attempts to write the correct answer in a different form.
