Answer to Question #159483 in Statistics and Probability for Sydney Munsaka

Question

Mr Mukonda’s perfomance of his 170 Biostatistics class of students

is given in an incomplete distribution below.

CLASS     FREQUENCY

0-10         12

10-20        21

20-30        f1

30-40        40

40-50        f2

50-60        26

60-70        18

(a) If the median is 35. Find the missing frequencies f1 and f2.

(b) From Rusangu University passing mark policy(40%), explain if the above results are normally distributed

Answer 1

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