Question

a survey of 200 families in a society shows the following result out of these families one is the chosen at random. what is the probability that the chosen family has no car​

Answer 1

Step-by-step explanation:

Answer

a). 1 car = 21/40

b). 3 or more cars = 3/40

c). no car = 1/10

Step-by-step explanation:

As we know,

Probability = No. of favorable outcomes/ = Total no. of outcomes

a). 1 Car

P(2 cars) = No. of favorable outcomes/ Total no. of outcomes

= 105/200

= 21/40

b). 3 or more cars

P(3 or more cars) = No. of favorable outcomes/Total no. of outcomes

= 15/200

= 3/40

c). No car

P(No cars) = No. of favorable outcomes/ Total no. of outcomes

= 20/200

= 1/10