SOLUTION: 1. A garden store has the following miscellaneous flower bulbs in a basket: 6 amaryllis 7 daffodils 4 lilies 3 tulips A customer bought 4 bulbs from the basket, one of

Question 862297: 1. A garden store has the following miscellaneous flower bulbs in a basket:
6 amaryllis
7 daffodils
4 lilies
3 tulips
A customer bought 4 bulbs from the basket, one of each type of flower. If the next customer selects 1 of the remaining bulbs at random, which is closest to the probability that customer will get a daffodil bulb?
36%
27%
29%
21%
2. Tina puts the letters of the word RADAR on pieces of paper and puts the pieces in a bag. She draws two letters without looking. The first piece of paper is not replaced before the second piece is drawn. What is the probability that Tina draws an R twice?
1/3
4/25
1/10
1/16
3.Eli has 8 black pens and 5 blue pens in his desk drawer. He also has 3 yellow highlighters, 2 green highlighters, and 3 pink hghlighters in his pencil case. If he chooses one pen and one highlighter without looking, what is the probability that he will get a blue pen and he will not get a yellow highlighter?
5/52
6/13
2/13
15/52
4. Each person in a group of students was identified by year and asked when he or she preferred taking classes: in the morning, afternoon, or evening. The results are shown in the table. Find the probability that the student preferred evening classes given he or she is a junior. Round to the nearest thousandth.
Freshman Sophomore Junior Senior
Morning 19 2 6 16
Afternoon 17 3 13 15
Evening 8 14 9 7
0.184
0.395
0.421
0.237

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

1. P(daff) =  = 37.5%

2. P(2R) =  Note Totals in denominators

3. P(BlP and Ghighlighter) =  Mutually exclusive events  (Note Totals in denominators)

4. always recommend listing totals on charts

             Fresh   Soph     Junior	Senior 

Morning  	19	2	6	16        43

Afternoon	17	3	13	15        48

Evening	        8	14      9       7         38

               44     19     28       38        129

P( evening|Junior) =   = 9/28  P(A|B) = P(A and B)/P(B)

 

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