Answer: c) All of the above
Step-by-step explanation:
a) X=the number of color-blind males of the randomly chosen 20 individuals
Thus, X is binomial with n = 20 and p = 0.08.
Y represents the number of color-blind females of the randomly chosen 40 individuals
Thus, Y is also binomial with n = 40 and p = 0.01.
b) However, Z represents the total number of color-blind which is 60. The probability of being color-blind is not equal among all individuals as it is for X (0.08) and Y (0.09). Thus, Z is not binomial.
In conclusion both a and b are correct, which gives the correct answer number c) all of the above.
I think its the second one... (hope its right)
Answer:
$678.98
Step-by-step explanation:
Let the amount she had before she started spending be T. If she went shopping and spent $493.98 then the amount she would have is
= T - 493.98
Given that she has $185 left then
T - 493.98 = 185
Add 493.98 to both sides
T - 493.98 + 493.98 = 185 + 493.98
T = $678.98
She must have had $678.98 in her bank account to begin?
