Question

The data collection is conducted by randomly selecting 51 persons whose ages are between 25-30 and interviewing the average time they spend on Instagram in a day.

What is the probability that people ages between 25-30 spend time using Instagram for more than one hour in a day?

I need a PMF equation

The collected data:

Number of Person	Time	Number of Person	Time	Number of Person	Time	Number of Person	Time
1	120	14	90	26	120	39	70
2	100	15	60	27	90	40	75
3	120	16	110	28	45	41	55
4	60	17	75	29	50	42	50
5	100	18	75	30	60	43	60
6	90	19	80	31	60	44	40
7	120	20	58	32	85	45	60
8	60	21	80	33	75	46	50
9	90	22	90	34	110	47	115
10	90	23	126	35	100	48	80
11	120	24	120	36	95	49	40
12	180	25	77	37	30	50	78
13	50			38	60	51	70

Answer 1

The given data is a continuous variable. Hence, we can not use PMF.