Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution. What is th e probability that a randomly selected student has a typing speed of less than 51 words per minute if the mean is 47 words per minute and the standard deviation is 4 words per minute
1 answer:
Answer: 0.8413
Step-by-step explanation:
Given : Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution.
Mean :
Standard deviation :
Let x be the random variable that represents the typing speeds for the students.
The z-score :-
For x= 51
Using the standard normal distribution table ,the probability that a randomly selected student has a typing speed of less than 51 words per minute :-
Hence, the probability that a randomly selected student has a typing speed of less than 51 words per minute = 0.8413
You might be interested in
Answer:
y= -3 -6x/5
Step-by-step explanation:
6x+5y=-15
-6x -6x
-----------------------------------
5y = -15 - 6x
divide both sides by 5
5y/5= -15/5 - 6x/5
y= -3 -6x/5
The volume is proportional to the cube of the radius: 4^3=64 The volume will be 64 times the original value!
It would be 3 because women’s meme
Answer:
25
Step-by-step explanation: