Answer:
0.25
Step-by-step explanation:
Given that a recently married couple are planning to have four children. They are equally likely to have a boy as well as a girl.
Let X be the no of boys the couples have. X has two outcomes with p = 0.5
X is binomial with n = no of trials = 4 and p =0.5
the probability that they will have three boys and one girl
=
Reqd prob = 0.25
Answer:
593,500
Step-by-step explanation:
48,000 * 12 = 576000
500000 * 3.5% = 17500
576000 + 17500 = 593500
Because 9=3^2, 9^6= 3^(6*2).
3^6*2= 3^12
Final answer: 3^12
Answer:
D 4/121
C 14/55
Step-by-step explanation:
The total number of tiles in mathematics is 11
P(a) = number of a's/ total = 2/11
We replace the tile
so there are 11 tiles and the are mathematics
P(a) = number of a's/ total = 2/11
P(a, replace then a) = 2/11 *2/11 = 4/121
P(vowel) = vowel/total = 4/11
We keep the vowel so there are only 10 tiles
3 vowels and 7 consonants
P( consonants) = consonant/total = 7/10
P(vowel, no replace, consonant) = 4/11*7/10 = 14/55
