Ryan’s mom randomly chooses two days each week for Ryan to do his chores. What is the probability that she picks Saturday and Su

Question

ANTONII [103]

4 years ago

15

Ryan’s mom randomly chooses two days each week for Ryan to do his chores. What is the probability that she picks Saturday and Su

nday?

Mathematics

2 answers:

torisob [31] · Answer 1 · 2021-10-25T07:09:05+03:00

torisob [31]4 years ago

4 0

There are a total of 7C2 of options for Ryan's mom to choose.

If Ryan's mom picks Saturday and Sunday, this is the only 1 option in those 7C2 of options. Thus, the propability is (1 / 7C2) × 100% = 4.762%.

Alona [7] · Answer 2 · 2021-10-25T09:13:00+03:00

Answer:

Probability that she picks Saturday and Sunday = 1/21 = 0.0476

Step-by-step explanation:

Total number of days in a week = 7

Number of days selected = 2

Total number of combinations = 7C₂ $=\frac{7*6}{1*2} =21$

Total number of favorable ways = 1 that is Sunday and Saturday.

Probability that she picks Saturday and Sunday = 1/21 = 0.0476