What is another expression to show 9/2
2 answers:
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Answer: 101.69
Step-by-step explanation:
Formula we use to find the z-score :-
(1)
Given :
Daniel's z score : z= 1.67
Let x be the raw score for Daniel's exam grade, then substitute the values of in (1), we get
Hence, the raw score for Daniel's exam grade = 101.69
Answer: 2718
Step-by-step explanation:
Given: Mean score = 85
Standard deviation = 5
Let x be the score of a random student that follows normal distribution.
Then, the probability that a student scored between 90 and 95 will be
The number of students scored between 90 and 95 = 0.1359 x (Total students)
= 0.1359 (20000)
= 2718
Hence, The number of students scored between 90 and 95 = 2718