8 kids, called Felix, Lana, Adam, Shaa, Fred, John, Eric and Aral are playing a game where they make new words out of their first name initials.

a. What number of particular six-letter words that have two 'A' and two 'F' yet only one 'L' would they be able to make out of their initials?

b. What number of particular six-letter words that have two 'A' and two 'F' (and no limitations on 'L') would they be able to make out of their initials?

NOTE: (The underlying of every individual must be utilized all things considered once, that is, 'F', 'L' and 'A' and no more twice and 'J' and 'E' at most once; a word is here characterized as an arrangement of letters, whether or not it bodes well in the English language.)

A scientist is researching the impacts of internet learning on K-12 schooling. He plans to

lead a study that will be messaged to all guardians and educators of understudies by the school

executives. He chooses to arbitrarily choose four schools in the area with around

400 understudies. The guardians and educators of the relative multitude of understudies at these schools will be overviewed.

Depict the examining technique being utilized and potential wellsprings of inspecting predisposition in his plan.

+7+

The game "craps" is played as follows: A player moves two reasonable six-sided dice. In the event that their aggregate is 7 or 11 the player wins immediately. In the event that their total is 2,3, or 12, the player loses immediately. In the event that their whole is some other number, this number turns into the "point". The player at that point more than once moves two dice until their whole equivalents the point, wherein case the player wins, or equivalents 7, in which case the player loses. What is the likelihood of the player winning?

From past experience, Anna realizes that the likelihood that her companion will take her to supper in Oro Resto 0.7, the likelihood that they will watch motion pictures is a 0.5, and the likelihood that he will take her to supper or they will watch films is on 0.9 What is the likelihood that

a) They will do both

b) They will do not one or the other?

4.A poker hand comprises of five cards. Ignoring the succession that these cards were managed from a very much rearranged deck of 52 playing a card game, what is the likelihood of

a) three lords or two sovereigns?

b) four red cards and one dark card?..

..