The distribution of marks of 400 candidates in an A-level examination is presented in Table 2.12. (a)

Question:

The distribution of marks of 400 candidates in an A-level examination is presented in Table 2.12.

(a) Calculate the mean value.

(b) Construct the cumulative frequency curve and estimate the median, fi rst, and third quartile values.

Marks 0-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 Table 2.12 Frequency, f 6 15 31 80 93 69 54

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Business Statistics Using Excel

ISBN: 9780199659517

2nd Edition

Authors: Glyn Davis, Branko Pecar

Question Posted: