Answer:
i need points
Step-by-step explanation:
i need points
Answer:
Step-by-step explanation:
Given that trainees must complete a specific task in less than 2 minutes.Consider the probability density function below for the time ittakes a trainee to complete the task.
Hence F(x) = = cumulative distributive function for x between 0 and 2.
1) the probability a trainee will complete the task inless than 1 minutes
=F(1) = 0.67-0.085 = 0.585
2. the probability that a trainee will complete the task inmore than 1 minutes
=1-F(1) = 0.415
3. the probability it will take a trainee between 0.68 minutes and 1 minutes to complete the task
=F(1)-F(0.68) =0.168704
=0.1687
4. the expected time it will take a trainee to complete thetask
=
=0.8867
5.If X represents the time it takes to complete the task, what isE(X2)? Give your answer to four decimal places.
E(x^2) =
=1.1067
6.If X represents the time it takes to complete the task, what isVar(X)
Var(x) = E(x^2)-Mean^2
= 1.106667-0.886667^2
= 0.320489
=0.3205
So he is paid 46.5 flat every day
he earns 5% of each smart phone he sells
at the time of the problem, smart phones sell for 70 so he earns 5% or 70 or 5/100 of 70 or 1/20 of 70 or 70/20 or 7/2 or 3 and 1/2 or $3.50 per phone he sells
so pay must be at lease 150 so
pay=46.5+ (# of phones times 3.50)
150<u><</u>46.50+(number of pones times 3.50)
solve for number of phones
subtract 46.5 from both sides
103.5<u><</u>(number of phonest imes 3.5)
divdie both sides by 3.5
29.57<u><</u>number of phones
round up since can't sell a fraction of a phone
30
he has to sell at leas 30 phones
Answer:
The other brother bought 6
Step-by-step explanation:
10 books in total
4 books bought by one brother
10 - 4 = 6
Answer: The answer is acually 54.3
Step-by-step explanation: cause I did it