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2 years ago

Explain what you can tell just by comparing the symbols in a picture graph

Mathematics

2 answers:

IceJOKER [234]2 years ago

5 0

The correct answer is:

What objects we're comparing.

Explanation:

In a picture graph, symbols are used to represent the data being displayed. For example, if we took a survey on the types of foods people preferred at a cookout, we could use a picture of a hamburger, a picture of a hot dot and a picture of a chicken leg.

We cannot tell anything about the amounts in the graphs just by comparing the symbols.

snow_lady [41]2 years ago

5 0

Suppose there are two car manufacturing company, which produces two different cars.The number of cars manufactured monthly is,

→Company A →→→→40 40 50 60 60 70 80 90 50 30 120 200

→Company B→→→→→20 30 40 50 60 80 80 100 100 120 140 180

So, if 10 cars manufactured is represented by symbol →Δ

Company A→→ΔΔΔΔ ΔΔΔΔ ΔΔΔΔΔ ΔΔΔΔΔΔ ΔΔΔΔΔΔ ΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔ ΔΔΔΔΔ ΔΔΔ ΔΔΔΔΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔ

Company B→→ΔΔ ΔΔΔ ΔΔΔΔ ΔΔΔΔΔ ΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔΔΔΔΔΔ ΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔ

By looking at the Symbols we can compare easily, which company has manufactured more cars if we have represented through tally marks.

By looking at the pictures answering becomes easier.

Now, a days tally marks is used , but if data values are high, we use symbols, so our work that is representation of thing becomes easier on the graph.

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A regular hexagon rotates counterclockwise around its center. It turns through angles greater than 0° and less or equal to 360°.

Sonja [21]

there are 6 sides to a hexagon

360/6 = 60 degrees

so it will map onto itself at 60, 120, 180, 240, 300 & 360

there are 6 different angles

6 0

2 years ago

A math teacher tells her students that eating a healthy breakfast on a test day will help their brain function and perform well

kogti [31]

Answer:

Step-by-step explanation:

Hello!

To test the claim that eating a healthy breakfast improves the performance of students on their test a math teacher randomly asked 46 students what did they have for breakfast before they took the final exam and classified them as:

Group 1: Ate healthy breakfast

X₁: Number of students that ate a healthy breakfast before the exam and earned 80% or higher.

n₁= 26

Group 2: Did not eat healthy breakfast

X₂: Number of students that did not eat a healthy breakfast before the exam and earned 80% or higher.

n₂= 20

After the test she counted the number of students that got 80% or more in the test for each group obtaining the following sample proportions:

p'₁= 0.50

p'₂= 0.40

The parameters of study are the population proportions, if the claim is true then p₁ > p₂

And you can determine the hypotheses as

H₀: p₁ ≤ p₂

H₁: p₁ > p₂

α: 0.05

$Z= \frac{(p'_1-p'_2)-(p_1-p_2)}{\sqrt{p'(1-p')[\frac{1}{n_1} +\frac{1}{n_2}] } } }$ ≈N(0;1)

pooled sample proportion: $p'= \frac{x_1+x_2}{n_1+n_2} =\frac{13+8}{46} = 0.46$

$Z_{H_0}= \frac{(0.5-0.4)-0}{\sqrt{0.46(1-0.46)[\frac{1}{26} +\frac{1}{20}] } } }= 0.67$

p-value: 0.2514

The decision rule is:

If p-value ≤ α, reject the null hypothesis.

If p-value > α, do not reject the null hypothesis.

The p-value: 0.2514 is greater than the significance level 0.05, the test is not significant.

At a 5% significance level you can conclude that the population proportion of math students that obtained at least 80% in the test and had a healthy breakfast is equal or less than the population proportion of math students that obtained at least 80% in the test and didn't have a healthy breakfast.

So having a healthy breakfast doesn't seem to improve the grades of students.

I hope this helps!

5 0

2 years ago

Diego has 75% of $10. Noah has 25% of $30. Diego thinks he has more money than Noah, but Noah thinks they have an equal amount o

Fynjy0 [20]

Answer:

Noah

Step-by-step explanation:

75%*10=7.5

25%*30=7.5

The answers are both 7.5, which are equal

5 0

2 years ago

Read 2 more answers

Rachel has 24 red candies and Maya has 18 green candies. They want to arrange the candies in such a way that each row contains e

oksano4ka [1.4K]

Answer: 6 candies per row.

Step-by-step explanation:

The restrictions that we have are:

Each row has the same number of candies.

Each row has only one color of candy.

We want to find the largest possible rows.

We have 18 green candies and 24 red candies.

Now, to arrange them in rows of equal numbers, we should find a common factor between 18 and 24. (particularly, we want to find the largest common factor between 18 and 24).

Now, to find common factors we first take the smaller number, and we divide it by different numbers, starting by 2 (we want to divide by small numbers, so the result will be the largest factor)

18/2 = 9.

Now to see if 9 is also a factor of 24, we see if the quotient between 24 and 9 is a whole number.

24/9 = 2.66

This is not a whole number, so 9 is not a common factor.

Now we divide by the next number, 3.

18/3 = 6.

24/6 = 4.

So 6 is a common factor of 18 and 24.

Then each row will have 6 candy.

And we will have:

18/6 = 3 rows of green candy.

24/ = 4 rows of red candy.

6 0

2 years ago

The two cones below are similar. What is the value of x?

Rama09 [41]

It is B just put it in calculator and abs divided

6 0

2 years ago

Read 2 more answers