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What is the probability of randomly selecting a three-child family with exactly two girl children?
2/6 is not accurate. using a theoretical method for equally likely outcomes, there are 2 possible outcomes for each birth: either a boy(B), or a girl (G). For a family of three children, the total number of possibilities (birth orders) is 2*2*2=8 to double check this work, here are the eight possible outcomes:
BBB, BBG, BGG, GBB, GBG, GGB, and GGG. You want EXACTLY two girls, this assumes that the other must be a boy. Therefore, the probability that a three child family has 2 girls one boy is P(2 girls)=3/8=0.375
What else can I help you with?
What is the probability of randomly selecting a three-children family with exactly two girs?
It is 3/8.
What is the probability of randomly selecting a four-child family with exactly two boy children?
2/4
What is the probability of selecting a face card or a spade when randomly selecting a card from a standard deck of cards?
The probability is 0.4231, approx.
What is the probability of randomly selecting a z-score less than 0.80?
It is approx 78.8%
What is the probability of randomly selecting one 9 from a standard deck of 52 cards?
1 in 13
What is the probability of randomly selecting a three-children family with exactly two girs?
It is 3/8.
What is the probability of randomly selecting a four-child family with exactly two boy children?
2/4
What is the probability of selecting a face card or a spade when randomly selecting a card from a standard deck of cards?
The probability is 0.4231, approx.
What is the probability of randomly selecting a z-score less than 0.80?
It is approx 78.8%
What is the probability of randomly selecting one 9 from a standard deck of 52 cards?
1 in 13
A number is randomly chosen between 1-50 what is the probability of selecting multiples of 36?
It is 0.02
If you randomly select a card from a deck of 52 cards what is the probability of selecting a black ace?
1/26
What is the probability of randomly selecting a z score greater than z equals -80?
0.7881 approx.
In a wooded area you randomly select 10 trees and find that 3 are tagged You conclude that there is a 30 percent probability of randomly selecting a tagged tree?
Empirical
What is the pobability of randomly selecting a month with 31 days?
The probability is 7:12... There are five months with less than 31 days, so the probability of selecting a month with exactly 31 days is 7 out of 12.
What is the probability as a percent of randomly selecting a white marble from a jar containing 8 black and 8 white?
50%
What is the probability of getting tails and selecting a 3 if you toss a coin and randomly select a number?
There are infinitely many numbers and so the probability of the second event is 0. As a result the overall probability is 0.
