Answer:
680 students
Step-by-step explanation:
The 68 - 95 - 99.7 rule (empirical rule) states that 68% of the population lies within one standard deviation of the mean, 95% of the population lies within two standard deviations and 95% of the population lies within three standard deviations.
Hence since it was said that within 1 deviation (of the mean) of all people like MATH 123, therefore the number of people that like MATH 123 is:
number of people that like MATH 123 = 68% of the population
number of people that like MATH 123 = 0.68 * 1000
number of people that like MATH 123 = 680 students
I'm sorry that it's past 11pm, but if it still helps, the answer is 204/-576 which simplifies to 51/-144
Replace 7 for the variable, t. N= 2000(2(7))= 28000
72 fish total. 12 fish in each tank.
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(g+t)n=f
g=Goldfish
t=Tetras
n=Number of fish tanks
*If I got it wrong, let me know*
