The original price is $3.00 and the store dismount is 25% what is the discounted price?
1 answer:
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Answer:
Probability that a set of tires wears out before 20,000 miles is 0.1151.
Step-by-step explanation:
We are given that a tire manufacturer warranties its tires to last at least 20,000 miles or "you get a new set of tires." In its past experience, a set of these tires last on average 26,000 miles with S.D. 5,000 miles. Assume that the wear is normally distributed.
<em>Let X = wearing of tires</em>
So, X ~ N()
Now, the z score probability distribution is given by;
Z = ~ N(0,1)
where, = average lasting of tires = 26,000 miles
= standard deviation = 5,000 miles
So, probability that a set of tires wears out before 20,000 miles is given by = P(X < 20,000 miles)
P(X < 20,000) = P( <
) = P(Z < -1.2) = 1 - P(Z
1.2)
= 1 - 0.88493 = 0.1151
Therefore, probability that a set of tires wears out before 20,000 miles is 0.1151.
Answer:
Relative Size, S, is 1584.89
Step-by-step explanation:
The equation is
Where,
- R is the measurement in Richter Scale
- S is the relative size of the earthquare
<u>It is given that in Richter Scale, an earthquake measured 3.2, so .</u>
<em>They want to know relative size, S, so we put given information in equation and solve for S:</em>
<em>Converting to exponential form, we have:</em>
<em>Rounding to nearest hundredth, we have:</em>