1))

A metro train on the Red Line shows up like clockwork during busy time. We are keen on the period of time a worker should trust that a train will show up. The time follows a uniform distribution.Give the appropriation of X. find .

f(X) =

, where X

. =

=

Discover the likelihood that the worker stands by short of what one moment. (Enter your answer as a small portion

Discover the likelihood that the worker holds up somewhere in the range of two and three minutes.

State "60% of workers stand by more than how long for the train?" in a likelihood question. (Enter your response to one decimal spot.)

Discover the likelihood that the worker stands by more than minutes.

Draw the image and discover the likelihood. (Enter your response to one decimal spot.)

2))

A couple chooses to have kids until they have one kid and one young lady, yet they won't have multiple kids. Pick the right example space for this irregular examination.

A. S = {GGG, GGB, GBG, GBB, BBB, BBG, BGB, BGG}

B. S = {GGG, GGB, BBB, BGG}

C. S = {GB, BG, BBG, GGB}

D. S = {GB, BG, BBG, GGB, BBB, GGG}

Is it right answer D?

3))

Giving a test to a gathering of understudies, the evaluations and sexes are summed up beneath.

A B C Total

Male 15 20 13 48

Female 7 17 3 27

Total 22 37 16 75

On the off chance that one understudy is picked aimlessly,

discover the likelihood that the understudy was male OR gotten an evaluation of "B". (Leave answer to four decimal spots.)

4))

Sickle cell illness is an acquired blood issue that influences red platelets. Since it is a latent issue, an individual acquiring two sickle cell qualities will have the illness, though an individual acquiring just a single sickle cell quality will be solid, however will convey the sickle cell characteristic. On the off chance that the two guardians have the sickle cell quality, and it is similarly likely whether a parent passes on the quality for sickle cell attribute, decide the likelihood that

1.an posterity will have the sickness.

2.an posterity will have the sickle cell quality.

3.an posterity will have neither sickle cell weakness nor the sickle cell attribute.