Mathematics, 29.04.2021 22:50 TJxx187
The Program for International Student Assessment (PISA) conducts test in mathematics in countries throughout the world. For 15-yer-olds in all developed countries, the scores in 2012 were normally distributed with a mean of 494 and a standard deviation of 92.
If there were 5,000 students who took the test, how many scored between 310 and 494?
a
2492.5
b
47.5
c
2375
d
49.85
Answers: 3
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