Mathematics, 08.12.2020 21:50 mawawakaiii
HEL ASAP
The keyboard life is normally distributed with a mean of 8 years with standard deviation
1.8 years.
The manufacturer will replace any such keyboard that wears out during the guarantee period.
The life of such keyboard is normally distributed.
a) If the guarantee period is 6 years, what percent of such keyboard will the manufacturer have to
replace?
b) How long should the guarantee run if the manufacturer wishes to replace no more
than 4.01% of keyboards?
Answers: 2
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Nine more than four times a number is the same as one less than twice the number. find the number?
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The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap
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Without multiplying, tell which product is larger and why. 5 Γ 1/3 or 5 Γ 2/3 a)5 Γ 1/3 because 1/3 is less than 2/3 b) 5 Γ 1/3 because 1/3 is greater than 2/3 c) 5 Γ 2/3 because 1/3 is less than 23 d) 5 Γ 23 because 1/3 is greater than 2/3
Answers: 1
HEL ASAP
The keyboard life is normally distributed with a mean of 8 years with standard deviation
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