For the following distribution, indicate the class boundaries
(compute to the first decimal) _____, frequency _____,...
For the following distribution, indicate the class boundaries
(compute to the first decimal) _____, frequency _____, and
cumulative frequency ______ for the interval of 53-55 _____.
Scores: 56, 51, 47, 58, 55, 52, 53, 52, 49, 55, 54, 53, 47, 51,
57, 49, 50, 50, 48, 56, 58, 47, 57, 51, 54, 57, 49, 56
For the following distribution, indicate the class boundaries
(compute to the first decimal) _____, frequency _____,...
For the following distribution, indicate the class boundaries
(compute to the first decimal) _____, frequency _____, and
cumulative frequency _____ for the interval of 56-58 _____.
Scores: 56, 51, 47, 58, 55, 52, 53, 52, 49, 55, 54, 53, 47, 51,
57, 49, 50, 50, 48, 56, 58, 47, 57, 51, 54, 57, 49, 56
Question 6
(a) Explain the difference between class limit and class
boundaries. [2 marks]
(b) Use...
Question 6
(a) Explain the difference between class limit and class
boundaries. [2 marks]
(b) Use the frequency table, Table 1, overleaf to answer the
following questions:
Table 1
X
f
0-9
3
10-19
14
20-29
11
30-39
5
(i) What is the class width?
(ii) What is the sample size?
(iii) What is the lower class limit of the first class?
(iv) What is the lower class boundary of the first class?
(i) What is the class width?
(ii)...
(a) Explain the difference between class limit and class
boundaries. [2 marks]
(b) Use the frequency...
(a) Explain the difference between class limit and class
boundaries. [2 marks]
(b) Use the frequency table, Table 1, overleaf to answer the
following questions:
Table 1
X
f
0-9
3
10-19
14
20-29
11
30-39
5
Question 7
Use Table 1 above to calculate:
(a) the mean [3 marks]
(b) the median [4 marks]
(c) the mode [4 marks]
(d) the first quartile [4 marks]
(e) the standard deviation. [3 marks]
There are 20 students in a class. Below are their scores on
their first test. Find...
There are 20 students in a class. Below are their scores on
their first test. Find the seventieth percentile of the following
data.
76,98,45,67,76,35,63,44,58,85,93,90,58,88,92,71,68,82,84,90.