Mathematics
Mathematics, 10.03.2020 01:36, abbz13

For a certain type of computer, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 15 hours.
(a) John owns one of these computers and wants to know the probability that the length of time will be between 50 and 70 hours.
(b) What is the probability that the length of time between charges is more than 67.5?
(c) What is the probability that the length of time between charges is less than 48?
(d) What length of time between charges should a computer have to be in the top 5% of the curve?

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:30, liltay12386
F(x)=x^3+4 question 6 options: the parent function is shifted up 4 units the parent function is shifted down 4 units the parent function is shifted left 4 units the parent function is shifted right 4 units
Answers: 1
image
Mathematics, 21.06.2019 19:00, nateqqj
Prove that quadrilateral is a rhombus.
Answers: 1
image
Mathematics, 21.06.2019 20:30, BAJRY
Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?
Answers: 2
image
Mathematics, 21.06.2019 21:00, minasotpen1253
Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day
Answers: 1
Do you know the correct answer?
For a certain type of computer, the length of time between charges of the battery is normally distri...

Questions in other subjects: