Statistics Probabilities 1. A random sample of 317 new Smile Bright electric toothbrushes
showed 19 were defective.
(a) How would you estimate the probability that a new
Smile Bright electric toothbrush is defective? What
is your estimate?
(b) What is your estimate for the probability that a Smile
Bright electric toothbrush is not defective?
(c) Either an electric toothbrush is defective or not. What
is the sample space in this problem. Do the probabilities
assigned to the sample space add up to one?

step-by-step explanation:

1. the cylinder is a. 54

2.   a.108 /

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

150.6

all i did was i multiplied 5.02 by 30