Working attached below. Hope this helps! Any questions let me know :)

**Answer:**

6^2 is the answer

**Step-by-step explanation:**

just trust me ik

7 + 7 = 14

and

14 + 1 = 15

so

8 + 7 = 15

hope it helps

Answer:

a)=0.6826

b)=0.6331

c))=0.1662

d)0.0016

Step-by-step explanation:

Binomial Distribution refers to the distribution in whereby only two possible outcomes. It takes place whether the event is happening or not happening , irrespective of the number of trials.

Given:

p = 0.6, q = 1 - p = 0.4

a)P(At least 3 out of 5 days) = P(3) + P(4) + P(5)

P(X≥3)=P(X=3)+P(X=4)+P(X=5)=5C3×0.63×0.45−3+5C4×0.64×0.45−4+5C5×0.65×0.45−5

10×0.63×0.45- 3+5×0.64×0.45 - 4+1×0.65×0.45 - 5

=0.6826

(b)P(At least 6 out of 10 days)

p(X = 6) + p(X = 7) + p(X = 8) + p(X = 9) + p(X = 10) =

0.2508 + 0.2150 + 0.1209 + 0.0403 + 0.0061 = 0.6331

(c)P(5 out of 10 days )

checking the binomial distribution table

p(X < 5) =

p(X = 0) + p(X = 1) + p(X = 2) + p(X = 3) + p(X = 4) =

0.0001 + 0.0016 + 0.0106 + 0.0425 + 0.1114 =0.1663

(d)

P(X<6)=0.0016

P(X<6)=0.0016

from answer from option D, it shows that there is 0.16% chance distribution from the 20 random sample,then it can be concluded that P<0.60

Triangle RTS is a right triangle and QTP is also a right triangle

look for the little square in the corners of a right triangle