A school knows that 10% of its students are left-handed. What is the probability that there will be between 33 and 45 left-handed students in a
randomly selected group of 400? Use your calculator and this formula: P(a<
X < b) = binomcdf(n, p,b) - binomcdf(n, p,a - 1). Round your answer to three
decimal places.
A. 0.718
B. 0.821
C. 0.138
D. 0.103

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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.

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step-by-step explanation: