Using it's concept, it is found that there is a 0.125 = 12.5% experimental probability that a randomly selected preschooler would choose to read books today.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
For an experimental probability, these numbers of outcomes are taken from previous trials.
In this problem, in the previous trial, one out of eight students read a book, hence:
p = 1/8 = 0.125 = 12.5%.
There is a 0.125 = 12.5% experimental probability that a randomly selected preschooler would choose to read books today.
More can be learned about probabilities at brainly.com/question/14398287
And or both means we multiply the given probability situations that are mutually exclusive and exhaustive - they cannot occur at the same time.
let P(a)=x
then: P(b) * P(a) =3/4
15/16 * x = 3/4
15x/16 = 3/4
therefore x= 3/4 *16/15
x = 4/5
P(a) = 4/5
hope it's clear
The maximum number of turning points in a cubic function is 2.
In this case,
![f(x)=3x^3-x^2+4x-2\implies f'(x)=9x^2-2x+4](https://tex.z-dn.net/?f=f%28x%29%3D3x%5E3-x%5E2%2B4x-2%5Cimplies%20f%27%28x%29%3D9x%5E2-2x%2B4)
The discriminant is
![(-2)^2-4(9)(4)=-140](https://tex.z-dn.net/?f=%28-2%29%5E2-4%289%29%284%29%3D-140%3C0)
, which means the derivative has no real roots. This means there are no critical points and thus no turning points/relative extrema.
Answer:
8.1796
Step-by-step explanation:
2.86 x 2.86 = 8.1796
80/16 = 5
Unit rate: $5 / ticket