A shuttle service transports passengers from the airport to local hotels. The vans used have room for up to 6 passengers. Data collected over several years indicate that the number of passengers per trip to the hotels follow the following probabilities. Passengers: 1 2 3 4 5 6
Probability: 0.20 0.25 0.22 0.13 0.10 0.10

Required:
A van leaves the airport for the local hotels. What is the probability there are at least 4 passengers on board?

Probability = 0.33

Step-by-step explanation:

Passengers:  1      2       3       4       5       6

Probability: 0.20  0.25  0.22  0.13  0.10  0.10

Let No. of passengers = x ; So probability of at least 4 passengers

Prob (x > 4) = Prob (x = 4) + Prob (x = 5) + Prob (x = 6)

= 0.13 + 0.10 + 0.10

= 0.33

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

b. x- 48 =120

step-by-step explanation: