Last fall, a gardener planted 65 iris bulbs. She found that only 56 of the bulbs bloomed in the spring?
a) Find the empirical probability that an iris bulb of this type will bloom
b) How many of the bulbs should she plant next fall if she would like at least 92 to bloom?
2007-09-04 10:56:55 · 5 answers · asked by Tim M 1 in Science & Mathematics ➔ Mathematics
56/65
92 / x = 56/65
x = 92 * 65/56 = 106.78
at least 107
2007-09-04 11:06:24 · answer #1 · answered by Beardo 7 · 0⤊ 0⤋
The probability is 56/65 for an individual bulb. To get the second answer, multiply 92 by the inverse of the probability (65/56). You should get a rounded-off answer of 107 bulbs minimum to plant next year. The other answer of 120 would be a practical number to actually work with in real life.
2007-09-04 18:07:01 · answer #2 · answered by TitoBob 7 · 0⤊ 0⤋
a) 56 / 65 bloomed so that is the empirical probability.
b) this question is a little ambiguous. she would like at least 92 to bloom with a given probability? It is that 92 bulbs should bloom as the expected value?
2007-09-04 18:10:37 · answer #3 · answered by Merlyn 7 · 0⤊ 0⤋
56/65 is the probability. Next year plant about 120.
2007-09-04 18:03:46 · answer #4 · answered by Renaissance Man 5 · 0⤊ 0⤋
PROBABILITY=56/65
OUT OF 65BULBS 56 BLOOMED
TO GET 92 WE NEED TO PLANT=65/56*92=107(APPROX)
2007-09-05 06:28:00 · answer #5 · answered by Sumita T 3 · 0⤊ 0⤋