Answer: 55 can not be considered a significantly high number of girls.
The probability is relevant to answering that question = .
Step-by-step explanation:
Given : For 100 births,
and .
Also it is said that consider a number of girls to be significantly high if the appropriate probability is 0.05 or less
To check :- If 55 girls in 100 births a significantly high number of girls .
We can see that
and , it means it is likely to occur 55 or more girls .
So 55 can not be considered a significantly high number of girls.
Answer:
1x^2
Step-by-step explanation:
Answer:
=-26
Step-by-step explanation:
f(n) = 7n – 5
Let n = -3
f(-3) = 7*(-3) – 5
Multiply first
= -21-5
=-26
4x5=20, add 2 to get to 22 :)
{-2x + 7y = -5
{-2x - 4y = 6 | · (-1)
{-2x + 7y = -5
{2x + 4y = -6 (+)
----------------------------------
-2x + 2x + 7y + 4y = -5 + (-6)
11y = -11 | : 11
y = -1
{y = -1
{2x + 4y = -6
{y = -1
{2x + 4 · (-1) = -6
{y = -1
{2x - 4 = -6 | + 4
{y = -1
{2x = -2 | : 2
{y = -1
{x = -1