Project translated automatically. Log in or register, to view the original 2nd Sandy James believes the prices of houses have stabilized over the past few months. In order to demonstrate this to her boss, she found in the advertising agencies the prices of 12 sold houses and calculated the average value and the average quadratic deviation of these prices. Why are these two final values equal? Three Experts conducting the census of the population found that in the last few years the average family size has decreased. Ten years ago, the average number of family members was 2.9. Consider the general set of data about 200 families presented in the table. Three Make a random sample of 30 elements and check the hypothesis that the average number of family members has not changed over the last 10 years. Calculate the average quadratic deviation, dispersion.

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Aleksandr Yasinsky

Winning proposal

5 0

Projects 6
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Rating 190

Budget: 200 UAH Deadline: 3 days

I will make all the calculations in the Excel file in the shortest time possible.

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Olha Romanenko
Kharkiv, Ukraine
Miko

Projects 14
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Rating 195

Olha Romanenko

Aleksandr Yasinsky

Aleksandr Yasinsky

Proposals are currently absent

Current freelance projects in the category Marketing Research

Ukrainian business directories. directories

Unlocking Instagram

Target Specialist / Performance Buyer (FB/IG + AI Creatives & Cross-Analytics)

Need consultation on launching complex niches in Google Ads (crazy clothing)

Looking for a TikTok Shop expert to launch and develop sales in the UK / Europe.