When studying populations, it is very difficult to evaluate all individuals, whether by size, difficulty, budget, etc., to solve this, the statistical inference deals with all the mathematical procedures that allow drawing conclusions for the population, with a degree of calculable error, from a sample of it.
Answer
C. Is the process of drawing inferences about the population based on the information taken from the sample
There were 5000 mangoes in the basket, 3750 of them were good.
% mangoes
25% ---------- 1250
75% ----------- X
25x = 1250.75
25x = 93750
X = 93750/25
X = 3750 mangoes
3750+1250 = 5000
Answer:
You can also work on the ways that you write polynomials. One way to write a polynomial is in standard form. In order to write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to right.
Step-by-step explanation:
Write the expression 3x−8+4x5 in standard form.
First, look at the degrees for each term in the expression.
3x has a degree of 1
8 has a degree of 0
4x5 has a degree of 5
Next, write this trinomial in order by degree, highest to lowest
4x5+3x−8
The answer is 4x5+3x−8.
The degree of a polynomial is the same as the degree of the highest term, so this expression is called a fifth degree trinomial.
Answer:
63 mph
Step-by-step explanation:
<u>Given:</u>
- Trip duration = 12 hours
- First half duration = 7 hours
- First half speed = 45 mph
<u>To find:</u>
<u>Solution:</u>
- One way distance = 7*45 = 315 miles
- Time on return = 12 - 7 = 5 hours
- Average speed on return trip= 315 / 5 = 63 mph