Suppose that scores on a knowledge test are normally distributed with a mean of 60 and a standard deviation of 4.3. scores on an aptitude test are normally distributed with a mean of 110 and a standard deviation of 7.1. boris scored a 57 on the knowledge test and 106 on the aptitude test. callie scored 63 on the knowledge test and 114 on the aptitude test. (a) which test did boris perform better on? use z-scores to support your answer. (b) which test did callie perform better on? use z-scores to support your answer. (c) boris also took a logic test. his z-score on that test was . does this change the answer to which test boris performed better on? explain your answer using z-scores.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

35-60 students are taking math.

answer: i think one of the answer is $150 and $300?

step-by-step explanation: