Answers:
In other words, only choice C is false while the others are true.
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Explanation:
The height of each bar represents the frequency for each group. It tells us how many students are in a certain interval. For example, the first bar has a height of 3 units to indicate there are 3 students between 140 and 155 cm.
Add up the heights of each bar to find the total number of students: 3+5+6+5+3+2 = 24
Statement A is correct because there are 24 students.
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Statement B is also correct. This is because the highest value on the x axis is 230 and the lowest is 140. The range is the distance or gap between them. Subtract the values: 230-140 = 90.
The distance from the shortest height (140 cm) and tallest height (230 cm) is 90 cm, which is the range.
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Unlike the previous two statements, choice C is not correct. Each bar represents a different interval. There are 6 bars, so there are 6 intervals (not 7).
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Choice D however, is correct. Focus on any single bar. Look at where its left and right endpoints are located. The first bar for instance starts at x = 140 and ends at x = 155. The gap is 155-140 = 15 units wide.
Well lets assume that NO = NP. If this is the case then 17 = 5x - 6. We then want to solve for x. So add 6 to each side, this equals 23 = 5x. I do not know if it is suppose to be a decimal, but I will do it anyway. Divide 23 by 5 which is 4.6. So x = 4.6. Now plug this into x. So NO = 17 and NP = 17. This is the only way I see possible to solve this problem. Let me know if it was correct please.
Answer:
Age of younger brother is 4 years..
And age if elder brother is 14 years.
Step-by-step explanation:
Let us denote 'x' as the age of smaller brother,
then, the age of younger brother will be x+10 years.
x+x+10 = 18
2x+10 = 18
2x = 18-10
2x = 8
x = 8/2
x = 4
Age of younger brother is 4 years.
Age of elder brother = x + 10
= 4 + 10
= 14 years.
Answer:
These dimensions represent area of a shape, or area of each side of a 4 sided 3D shape.
Are you telling us? This doesn't sound like a question.
