38 4/7 = 270/7
% (percent) means per hundred (1/100)
so, (270/7)% is same thing as 270/700 or 27/70.
Answer: 270/100 or 27/70
Answer:
Lauren
Step-by-step explanation:
1/2 is Erin
3/4 is Lauren
I’m to lazy to figure out this question
Answer:
3/11
Step-by-step explanation:pls mark me brainliest
Answer: 100
5
Step-by-step explanation:
a) The mean of a normal distribution is also the median. Half the population will have values above the mean. Half of 200 is 100, so ...
... 100 students will have grades above 70%.
b) 84% is 14% above the mean. Each 7% is 1 standard deviation, so 14% is 2 standard deviations above the mean. The empirical rule tells you 95% of the population is within 2 standard deviations of the mean, so about 5% of students (10 students) got grades higher than 84% or lower than 56%. The normal distribution is symmetrical, so we expect about 5 students in each range.
... about 5 students will have grades above 84%.
