Mathematics, 05.01.2021 16:50 ReignAsrs
The Malthouse Charity Run is a 5 kilometre race. The time taken for each runner to complete the race was recorded. The data was found to be normally distributed with a mean time
of 28 minutes and a standard deviation of 5 minutes.
A runner who completed the race is chosen at random.
Write down the probability that the runner completed the race in more than 28 minutes.
3b. [2 marks]
Calculate the probability that the runner completed the race in less than 26 minutes.
3c. [3 marks]
It is known that 20% of the runners took more than 28 minutes and less than minutes to complete the race.
Find the value of .
Answers: 2
Mathematics, 21.06.2019 14:50
Apair of ordinary dice is rolled. what is the probability that each die will show a number higher than 4. 1. (1/36) 2. (1/12) 3. (1/6) 4. (1/4) 5. (1/3)
Answers: 2
Mathematics, 22.06.2019 01:30
Your car's gasoline tank holds 18 gallons of gasoline. on a trip in canada, the tank is one-quarter full. you want to fill the tank. how many liters of gasoline are needed to fill the tank
Answers: 2
Mathematics, 22.06.2019 04:00
Which elements in the set are integers? β8, 3β4, β 18 , 0, β 16 , 5, β2β7, 6 a. β8, 0, 5, 6 b. β8, 0, β 16 , 5, 6 c. 3β4, β 18 , β 16 , 5, β2β7 d. β8, 0, β 18 , 5, 6
Answers: 1
The Malthouse Charity Run is a 5 kilometre race. The time taken for each runner to complete the race...
Mathematics, 03.11.2019 12:31
Mathematics, 03.11.2019 12:31
Chemistry, 03.11.2019 12:31
History, 03.11.2019 12:31
Mathematics, 03.11.2019 12:31
History, 03.11.2019 12:31
English, 03.11.2019 12:31
Biology, 03.11.2019 12:31