In a random sample of 100 people, 25 men like fish,25 like meat,30 women like fish, 20 like meat.?

Question

if one person is selected from the group what is the probability that it would be a woman and prefers meat. If one person is selected from the group what is the probability that it would be a woman and prefers meat and fish.
if one person is selected from the group what is the probability that it would be a woman .

Answer 1

20/100 or 1/5 or 20% (all the same thing) for a woman who prefers meat.

Prefers meat AND fish??? Don't know.

50/100 or 1/2 or 50% chance it is a woman (that is IF the last part of the beginning or your question is that 30 women like fish and 20 WOMEN like meat).

Answer 2

I'm assuming you mean: 25 men like fish and 25 mean like meat. 30 women like fish and 20 women like meat.

The values are also assumed independent of each other, i.e. a person can like both meat and fish.

Now last question first, because it is used in the other, from a random sample of 100 persons, you would have a 50% probability of it being a woman (of course this is approximate, depending on country... some places people kill their daughters, so there are more than 50% men... but anyhow)...

actually this is easier than joint probabilties because you already have the answer! you know that of your sample of 100 people, 20 women like meat.. thus P=20%

You also know probability that a women who likes fish would be selected is 30%.

Now for liking both fish and meat this is joint probability, you multiply the 2 independent probs, so .2*.3 = 6% is the chance you would randomly pick from 100 people a woman who likes both fish and meat.

Answer 3

How many people can be randomly picked out ? 100
So total number of possiblities = 100

1. woman prefering meat = 20/100 = 1/5
2. woman prefering meat AND fish = 0/100 = 0
3. woman = (30+20)/100 = 50/100 = 1/2

Answer 4

20 women prefer meat.
20:100 women prefer meat. or 20/100 women prefer meat.
Ask your teacher if she wants you to reduce: 20/100 reduces to 1/5

The total number of people or marbles or whatever in a random sample will be the bottom number of a fraction or a last number of a probability.

Probability that it is a woman: 50/100 or 1/2

Answer 5

1 - 20/100 = 1/5

2 - 0/100 =0

3 - 50/100=1/2

Answer 6

Total number of people - 100
Men like fish - 25
Men like meat - 25
Women like fish - 30
Women like meat - 20

Woman who prefers meat - 1/5
Woman prefers meat and fish - 0?
Woman - 1/2

Answer 7

while you're severe and not agitated, as you sound, I certainly have few observations. IQ tests are legally employed to degree the psychological processing. bigger IQ if truth be told means bigger style of neuronal connection - something this is often gained. Now, factor consistent with factor... a million and a pair of are non-arguments. in case you be conscious they actually prepare the choice of what you are attempting to disprove. 3. I certainly have not come for the time of any study touching directly to that. i do no longer understand if the college age infants IQ is any predictor of their person point of intelligence. that's although in the mathematical danger that those falling on the +/-2.5 SD of a Gaussian curve, will safeguard their IQ of their adulthood, regardless of their gender. it truly is although a danger, I my self have seen many exception in this rule. something you should understand with the aid of fact the guideline of regression. 4. i'm no longer getting this. If i ought to, while those entrants enter in a school, then the pattern customarily has an commonly used of a hundred one hundred twenty IQ. that would be the norm, and the reference fee or 0 fee on a Bell curve. Statistically, you desire 1200 or greater of a pattern length to have an impartial effect with random decision. Now, you probably did no longer grant any information no rely if the assessment replaced into valid i.e. male and woman of same classification, same college have been in comparison. If no longer, it would not carry water, if sure, then it does have fee. uncooked documents are the main sturdy source with the aid of fact it removes the examiner's bias. IQ tests in itself removes the collector's bias. So, uncooked documents is a robust source. nonetheless, i do no longer desire to decide a individual in step with their gender. In my field of difficult opposition, I certainly have seen great woman minds and male minds (even actually on a table too :) ), and hard paintings trumps all. The wording of the checklist replaced into men have been at inherent benefit in some matters. that's no longer psychologically sexist, its biologically sexist. no longer something you're able to do approximately it. you may't say that men are greater smart than females. Nor are you able to disprove medical documents in basic terms with the aid of fact that's no longer politically ultimate.