every day amy travels 30 miles one-way to work. The park-and-ride where she catches the train is 5 miles from her home. The aver
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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
To find a volume of a cylinder we use the following formula:
Plug in the values:
Take the square:
Multiply the numbers:
Plug in the values:
Take the square:
Multiply the numbers: