Answer:
0.0499
Step-by-step explanation:
This is a binomial probability function expressed as:

Given that n =8, and p(male)=1-0.6=0.4, the probability of at least 6 being male is calculated as:

Hence, the probability of at least 6 males is 0.0499
The fourth term of the binomial expansion
can be calculated using the formula for (i+1)-th term of the binomial expansion:

In order to find term
, determine that

Now

Answer: correct choice is A
Answer:
z=16
Step-by-step explanation:
z/4-2=2(take l.c.m)
or,(z-8)/4=2
or,z-8=8
z=16
Answer: 15 months
Step-by-step explanation:
Her balance after paying the registration fee is $300. Then we need to divide this remaining money into as many chunks (months )of $20. So we do 300/20 = 15 months
[15 + 1/2 ] - [ 2 + 3/4 ] - [6 + 2/3 ]......convertng these to improper fractions, we have
[31 /2 ] - [11 / 4 ] - [ 20 / 3 ] getting a common denominator (12), we have
[186 / 12] - [33 / 12 ] - [ 80 / 12 ] = 73 / 12 inches = about 6.0833 inches left