Answer:
Step-by-step explanation:
Since the scores of the math test are normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = math test scores.
µ = mean score
σ = standard deviation
From the information given,
µ = 76
σ = 5
The probability that a student scored below 65 is expressed as
P(x < 65)
For x = 65
z = (65 - 76)/5 = - 2.2
Looking at the normal distribution table, the probability corresponding to the z score is 0.014
The percentage of students that scored below 65 is
0.014 × 100 = 1.4%
Answer:
15/14
Step-by-step explanation:
well you add the two number and you put the whole number in the first single square and the actual fraction you put in the two 2 squares
sorry if I am wrong
Answer:
Step-by-step explanation:
Subtract 12 from 8
Add the numbers : 2 and 3
Hope I helped!
Best regards! :D
