Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. A Level
  3. Maths OCR (MEI)
  5. Question bank

2.4.13 Model with probability distributions

MediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455
Question 32

An autonomous drone delivery service observes that the probability of a drone failing to land within the designated landing zone is 0.08.

a.

Find the probability that, in a random sample of 50 landings, fewer than 3 drones fail to land in the designated zone.

[3]
b.

The service completes 800 deliveries over the course of a weekend.

Using a suitable approximation, estimate the probability that more than 75 drones fail to land in the designated zone.

[5]

2.4.13 Model with probability distributions Questions

  1. A Level
  2. /Maths
  3. /2.4.13 Model with probability distributions