Question

Simplify: (5+ 7)(2+ 5)
11. Three coins are tossed simultaneously 1000 times with the following requencies of
different outcomes:
Outcomes
3 Heads 2 Heads 1 Head No Head
Frequency
230
270
285 215
i. Find the probability of getting exactly one head.
ii. Find the probability of getting more than 2 Heads.​

Answer 1

Answer:

Probability = number of outcomes/total number of tries

(i) Exactly one head

Therefore, number of outcomes =285

Probability= 285/1000

                 = 57/200

(ii) More than 2 heads

Therefore, number of outcomes =230

Probability= 230/1000

                =23