Answer:
- Elanor's standardized score is 1.19
- Gerald's standardized score is 0.72
- Elanor has higher score
Step-by-step explanation:
To compare Elanor's and Gerald's math scores, we need to standardize them and calculate their z-scores.
z score can be calculated using the formula
z= where
- M is the mean score of the exam
- s is the standard deviation of the exam
Elanor's standardized score is:
z(e) = ≈ 1.19
Gerald's standardized score is:
z(g)= ≈ 0.72
Since z(e) > z(g), Elanor has higher score
There are 5 data in this question. To answer these question it is best to make the list based on price in ascending order.
The list would be: $650, $650, $740, $820, $ 1650
Mean: (650+650+740+820+1650) /5= $902
Median: $740 since there is 5 data, the median should be (5+1)/2= 3rd data.
Mode= $650 because it only the number with 2 frequency
Answer:
it isnt
Step-by-step explanation:
8 X 8 = 64
8 X 7 = 56
i cannot equal 60 unless it is a decimal
8 X 7.5 = 60