JAMB Mathematics Past Questions & Answers - Page 112

556.

From the venn diagram above, the complement of the set P\(\cap\)Q is given by

A.

{a, b, d, e}

B.

{b, d}

C.

{a, e}

D.

{c}

Correct answer is A

No explanation has been provided for this answer.

557.

The cumulative frequency curve above shows the distribution of the scores of 50 students in an examination. Find the 36th percentile scores?

A.

18%

B.

28%

C.

36%

D.

50%

Correct answer is B

 the 36th percentile i.e. 36% of the total frequency of 50.

\(\frac{36}{100}\) \(\times\) 50 = 18

= From the graph, 18 on the vertical axis corresponds to28 on the horizontal axis.

\(\therefore\) P\(_{36}\) = 28%

558.

The histogram above represents the number of candidates that sat for the Mathematics examination in a school. How many candidates scored more than 50 marks?

A.

80

B.

95

C.

100

D.

115

Correct answer is B

\(\begin{array}{c|c} Mark & No. of Candidate\\\hline 60 & 40\\ 70 & 25\\ 80 & 15\\ 90 & 10 \\100 & 5 \\\hline & 95 \end{array}\)

559.

The response of 160 pupils in a school asked to indicate their favourite subjects is given in the bar chart above. What percentage of the pupils have English and Health education as the their favourite subjects?

A.

55%

B.

52%

C.

36%

D.

22%

Correct answer is A

English = 52 students

Health education = 36 students

Total = 88 students

= \(\frac{88}{160} \times 100%\)

= 55%

560.

From the diagram given, find the bearing of R from S

A.

226o

B.

224o

C.

136o

D.

134o

Correct answer is B

The bearing of R from S = 180 + 44 = 224º, because

-Following the clockwise movement at 90º:

-NORTH -EAST, EAST-SOUTH, SOUTH - WEST & WEST - NORTH

- It is observed that R is situated between SOUTH - WEST poles on S