The data set represents the total number of people who bought bananas each hour at a grocery store.
2 answers:
Answer:
Box A represent the given data.
Step-by-step explanation:
Given : Given : The data set represents the total number of people who bought bananas each hour at a grocery store 1, 1, 5, 5, 7, 8, 8, 10, 12.
To find : Which box plot correctly represents the data.
Solution : We have given that data 1, 1, 5, 5, 7, 8, 8, 10, 12.
We can see from data
Median : 7
Upper quartile : 1 ,1, 5, 5.
Median of upper quartile : = 3.
Lower quartile : 8, 8, 10, 12.
Median of lower quartile : = 9.
So, the box which show the range from 1 to 12
and lower box line at 3 and middle line at 7 for median and lower line at 9
represent by the box A.
Therefore, Box A represent the given data.
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Answer:
Probability that Adam and Ella will be selected:
Step-by-step explanation:
Probabilities
The probability of a random event E to occur is a real number between 0 and 1, both inclusive, where 0 indicates an impossible event and 1 a sure event. There are many techniques to compute probabilities depending on the particular situation and distribution.
This question will be solved by simple calculations and logic, given its simplicity. We know the middle school chess club has 5 members: Adam, Bradley, Carol, Dave, and Ella. Two of them are going to be selected at random to participate in the county chess tournament. We can calculate the number of different ways it can be done without any restriction. It's called the sample space.
The sample space of this event is the combination of 5 members regardless of their position. If {a,b,c,d,e} are the five members, then the possible combinations are {ab,ac,ad,ae,bc,bd,be,cd,ce,de}. Notice that there are only 10 possibilities because the combination ab is the same as ba since it's the same team for the tournament.
We can see there is only one combination of two specific letters out of 10. If a=Adam and e=Ella, only one combination is ae, the other 9 don't include both members, so the probability is