Persons entering a blood bank are such that 1 in 3 have type o blood and 1 in 12 have type o− blood. consider three randomly selected donors for the blood bank. let x denote the number of donors with type o blood and y denote the number with type o− blood. find the probability distributions for x and y. also find the probability distribution for z

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%

sounds & other waves originate from any vibrating object