Big brothers and sisters who have studied statistics, I have found a serious problem!!

It really doesn't mean anything.

I thought so too.

It's just a practice for the students.

First of all, I'm not a professional. Give a shop advice.

Is the fan chart you mentioned a pie chart? If it were, look down, not ignore it.

I think so. Of course, you can draw a pie-shaped diagram. The problem is that the pie chart can explain how much of a quantity occupies in the total volume, and thus provide a focus for scientific research.

For example, 1 million people, 500,000 elderly, 100,000 young, 100,000 young, and so on. After drawing the picture, it is clear that the proportion of the elderly is relatively large, so the population policy should be biased towards the elderly. The question of how much of a given year's share of total GDP over a six-year period does not make a clear sense.

It may indicate that the economic situation is better this year. Or it can be explained that the economic policy of the year can provide a reference for the corresponding research. In the final analysis, it comes back to the question of why it is bigger.

Why is this year better than others? Pie charts can provide a visual impression that can lead to a later analysis discussion.

Not with line charts. The line chart looks at the trend. It's simple ****, no one uses a pie chart to describe it, right?!

Hehe. Break it yourself. Hope that helps.

The whole graph is the share of the total GDP for the six years, and the growth rate of GDP in each year can be reflected by comparing the area size of each sector chart.

I can't draw it, let alone say it, it's nonsense to talk too much, it doesn't conform to reality, these textbooks are really.

I've learned, but I'm hanging, no!! 555

It really doesn't mean anything.

(1) Completion in the first quarter 2 3=67%; Q2 Completion 2 3=67%.

2) In the first half of the year, pig iron completion (600 + 718) (600 + 700) = steel completion (400 + 400) (350 + 450) = 100% cement completion (110 + 280) (200 + 250) =

1) The total number of people who are defeated is divided by the number of people in the whole grinding cavity =

2）sd(x)=

sd(y)=

Therefore, the standard deviation of equipment B is smaller, and the quality of blind clothes is more stable.

Select B to set up employee M, with an average salary A

**The total after is (1+5%)m * 1+2%)a

Growth (1+5%)*1+2%) =

5,b A one-off survey is a survey conducted at intervals of time.

7,b Definitions.

9,c The unit of a whole can only be an objective thing.

10,a Definitions.

11,a13,c Per capita income, population density, life expectancy.

14,b15,b quality indicators are statistical indicators that reflect the relative level or average level of socio-economic phenomena, expressed as averages or relative numbers.

I'm a statistician

The total price of the three commodities in 2009 is calculated according to the ratio of 1:1:1

80,000 + 25,000 + 14,000 = the total price of 3 commodities in 1190002008, calculated according to the ratio of 1:1:1:

Using 2008 as the base period, the total index of the three commodities in 2009 is: