Tanner took a statistics test whose mean was 80 and the standard deviation was 5. The total points possible was 100. Tanner's sc
ore was 2 standard deviations below the mean. What was Tanner's score, rounded to the nearest whole number?
1 answer:
Answer:
Tanner's score = 70
Step-by-step explanation:
Data provided in the question:
Mean value of the statistics test taken by Tanner = 80
Standard deviation = 5
Total points possible = 100
Now,
It is given that the Tanner's score was 2 standard deviation below the mean
Mathematically,
Tanner's score = Mean - ( 2 × Standard deviation )
or
Tanner's score = 80 - ( 2 × 5 )
or
Tanner's score = 80 - 10
or
Tanner's score = 70
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