ray109
22.04.2020 •
Mathematics
Three angles measure are 2x , 4x , and 6x . What is the smallest angle ? “hint find the value of x”
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Ответ:
Raul did better in biology test relative to the rest of the class.
Step-by-step explanation:
We are given two situations;
Raul received a score of 75 on a history test for which the class mean was 70 with a standard deviation of 8.He received a score of 80 on a biology test for which the class mean was 70 with standard deviation 5.Now, we have to find on which test did he do better relative to the rest of the class. For this we will calculate z score for both the situations;
The z score value is given by, Z = ; where, = mean
= standard deviation
For 1st situation; z score = = 0.625
For 2nd situation; z score = = 2
So, it is clear that 2nd situation is better as it has higher z score.
Therefore, Raul did better in biology test relative to the rest of the class.