The probability that a college student will get to work in 30 mins or less is 0.4 or 40%.
What does uniformly distributed probability mean?
Uniform distribution refers to a type of probability distribution in which all outcomes are equally likely to occur.
According to the given question:
Since the time is uniformly distributed, every possible travel time has the same likelihood of occurring.
Lower boundary (L) = 20 minutes
Upper boundary (U) = 45 minutes
The probability that a student finishes her trip in 30 minutes or less is:
P (t ≤ 30) = (30 - L)/(U - L)
= (30 - 20)/(45 - 20)
= 10/25
= 0.4 or 40%
The probability that she will get to work in 30 mins or less is 0.4 or 40%
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Answer:
Step-by-step explanation:
The easiest way is to use the distributive rule. 15¾ = 15+ ¾
15¾*8 = (15+¾)8 = 15*8 + ¾*8 = 120+6 = 126
To convert the decimal 0.928 to a fraction, just follow these steps:
Step 1: Write down the number as a fraction of one:
0.928 = 0.928
1
Step 2: Multiply both top and bottom by 10 for every number after the decimal point:
As we have 3 numbers after the decimal point, we multiply both numerator and denominator by 1000. So,
0.928
1
= (0.928 × 1000)
(1 × 1000)
= 928
1000
.
Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD(928,1000) = 8. So,
(928÷8)
(1000÷8)
= 116
125
when reduced to the simplest form.
Answer:
1000, 2000, 3000, .... etc are the 4-digit numbers which when divided by 1000, give whole number answer.
Step-by-step explanation:
Scott divides some 4- digit numbers by 1000 and his answer is a decimal every time.
From this Scott has concluded that if you divide a 4-digit number by 1000, then the answer will never be a whole number.
I think Scott is wrong and the reason is that if we try to divide those 4-digit numbers which are multiples of 1000, i.e. 1000, 2000, 3000, 4000, ... etc. with 1000 then only you will get a whole number answer. (Answer)
Answer:
Average = 59.6667
Step-by-step explanation:
If Crane's average score on the first 2 tests was 85, we know that the sum of these both tests' score is 85 * 2 = 170.
Now, we sum the score of the third test, which is 9, so we have now 3 tests, and the sum of the scores is 170 + 9 = 179.
Calculating the new average, we divide the sum of the scores by 3, because now we have 3 tests instead of 2, so:
Average = 179 / 3 = 59.6667