In a study that assessed pulse rate at rest in different age groups, a researcher manually collected the information on 25 participants. The ages and the pulse values are presented in the below table.

• Re-arrange the data in another table while presenting mean pulse rate at rest by age categories. Every age category must include a range of 5 years only, for example: 5-9, 10-14, etc. The categories must be mutually exclusive.
• Add a third column to present the relative frequencies.
• What is the proportion of males and females in this sample?

Show your calculations.

Age of individual participants	Sex	Pulse rate of individual participants
19	M	64
10	M	85
13	M	76
21	F	69
40	F	90
11	F	54
20	F	59
44	M	62
17	M	75
15	M	84
43	M	80
50	missing	110
49	missing	68
59	F	94
16	F	64
27	F	63
33	missing	73
25	M	79
39	M	88
35	F	80
19	F	80
11	M	68
43	F	69
15	M	79
11.5	missing	71