[計量] 幾題計量~又要麻煩大家了!!!
1. A certain hospital was only open last week, and there was a total of
10 people traveling by bus to the hospital. What is the probability that
at least two people went to the hospital in the same day?
Ans: 1
2. A bus trip of 450 miles would have taken 1 hour less if the average
speed S for the trip had been greater by 5 miles per hour.
Column A : The average speed S, in miles per hour, for the trip
Column B : 50
Ans: B
3. An equiangular octagon has four sides of length 1 and four side of
length (√2 )/ 2, arranged so that no two consecutive sides have
the same length. What is the area of the octagon?
Ans: 7/2
4. If a fair die and a fair coin are tossed at the same time, what is
the probability that the dots tossed on the face the die will be prime
and the coin will turn up tails?
Ans: 1/4
此題意思我不太明白!!!
麻煩大家了!THX!!!
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