Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approxi
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The correct statements are as follows;
42% of the students prefer a concert over a movie.
A greater ratio of 11th graders prefer a concert to a movie
The difference in the percent of students who prefer a movie over a concert is 16%
Given that
A random sample of 184 students at South High School was surveyed on whether they would prefer going to a movie or a concert.
10th 11th 12th total
Movie .18 .16 .24 .58
Concert .15 .18 .09 .42
Total .33 .34 .33 1
According to the question
The marginal relative frequency for 10th graders is 0.18.
This is an incomplete statement.
The marginal frequency is a number, not a percent.
42% of the students prefer a concert over a movie.
42% preferred a convert to the 58% who preferred a movie.
This statement is True.
A greater ratio of 11th graders prefers a concert to a movie.
18/100 concert to 16/100 for the movie for 11th graders.
More 12th graders were surveyed than any other grade level.
There were more 11th graders surveyed (34%) to (33%) for 12 graders False
The difference in the percent of students who prefer a movie over a concert is 16%.
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Answer:
The three iron rods cannot be placed together to form a triangle.
Step-by-step explanation:
We have been given that James has three iron rods. Rod A is 3 feet long, rod B is 8 feet long, and rod C is 13 feet long. We are asked to determine whether the lengths of all rods can be used to form a triangle.
We will use triangle inequality theorem to solve our given problem.
Triangle inequality theorem states that sum of two sides of a triangle must be greater than 3rd side.
Using triangle inequality theorem, we will get inequalities as:
We can see that our 2nd inequality is not true because 11 is not greater than 13.
Since sum of two sides is not greater than 3rd side, therefore, the three iron rods cannot be placed together to form a triangle.