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Lijim
Questions (11)
How many different 6 letter "words" can be formed from the letters C,A,N,Y,O,N if:
O must be last, A must be first and
2 answers
435 views
Using set notation (union, intersection, complement,etc.) write the following subset in terms of T,V,S: the set of potters
0 answers
467 views
A coin is weighted so that the probability of obtaining a head in a single toss is .4. If the coin is tossed 25 times, what is
3 answers
581 views
For p(-1.32<Z<1.74) I'd just switch the numbers from negative to positive and vice versa right? Like p(z<1.32) - p (z<-1.74)
0 answers
346 views
P(z>1.11). Is a trick to change > to < and convert the number to negative? Like this p(z<-1.11)?
2 answers
683 views
Let z be the standard normal variable. Find z if z satisfies p(Z<z)=.2090. Is that just -0.8?
0 answers
477 views
A survey shows that 75% of the households in a large town have microwave ovens. If 20 houses are selected at random, find the
0 answers
576 views
Find the value of the probability of the standard normal random variable z: (a) p (z<2.08) (b) p (z>1.87) (c) p (1.24<z<1.86)
0 answers
802 views
A binomial experiment consists of 9 independent trials. The probability of success in each is 0.4. Using tables find p(x less
2 answers
478 views
3 child family.... probability that all three children are girls given that at least one of the kids is a girl?
P(E) = all 3 kids
0 answers
449 views
I'm beginning a new unit in class on probability sets but I don't know what the U and upside down U symbols mean.
2 answers
400 views
Answers (8)
I already wrote my answers?????
I used n times p for the mean and the square root of npq for the standard deviation
I'm confused. How is it .4207 and not .5000?
With the z value being 0.1357?
Then it asks for the mean and standard deviation. The mean is 18 and SD is 25 right?
Its supposed to be a distribution table but it's sloppy since I'm writing from my phone.
D = {x E U l is a doctor } M = {x E U l is a male} (the administrator, nurses, and women also have the same notation as above.I also know it is not E but I don't have that symbol) But for D (upside down U) complement of M would I describe it as enployees
I think U is union but I'm not sure about the upside down U.
