At Roxbury Community College, 7 out of every 10 students take introduction to Statistics. If there are 2500 students at RCC, how many take intro To Statistics?

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According to the U.S. Census Bureau, in 1950, 39.3 million families had a child under 18 at home. Suppose a recent study found that the number had decreased by 8.9%. How many million families had a child under 18 at home according to this study? Round the number of millions to the nearest tenth.

MarkLines is an online portal (www.marklines.com) that reports automotive industry data. The table below shows the number of cars sold in the United States from January to November in 2017 and 2018. The top 22 manufacturers, plus others, are listed here. Sales data often is reported in this way to compare current sales to last year’s sales.     Car Sales Manufacturer Jan.-Nov.2017 Jan.-Nov.2018 GM (Est.) 2,691,493 2,654,568 Ford 2,334,290 2,265,590 Toyota 2,211,533 2,205,762 Fiat Chrysler 1,887,430 2,038,684 Honda 1,492,112 1,449,713 Nissan 1,455,238 1,345,157 Hyundai 621,961 612,225 Subaru 584,614 615,594 Kia 546,629 542,245 Mercedes (includes Sprinter) 332,990 318,012 BMW 271,432 276,657 VW 309,395 322,017 Mazda 262,577 274,455 Audi 199,534 200,558 Tesla (Est.) 40,320 106,050 Land Rover 66,759 81,526 Volvo 71828 89437 Mitsubishi 95,185 109,088 Porsche 51,507 53,116 MINI 42,494 40,887 Jaguar 36,180 27,021 Others 18,901 17,251 smart…

One of the basketball coaches at Cypress College wanted to see if Cypress College's Strength & Exercise class was increasing the weight that a player could bench press. The basketball coach randomly selected some of his players and determined how much they could bench press before taking the class. Then after completing the class, he again determined the weight that they could now bench press. The data for these players is given in the table below. Test whether the Strength and Exercise class is increasing the amount of weight that the players can bench press at the a=0.05 level of significance. Player Player 1 Player 2 Player 3 Player 4 Pounds Lifted Before 205 241 338 368 [ Select] ANOVA 2-SampFTest 252 330 360 2-SampTTest X^2-Test 2-PropZTest T-Test [ Select ] P-Value [ Select] Conclusion

Please check answers  1; 0.351 2; 0.060 3;0.205 4; 0.172

What proportion of the general population has an IQ of 70 or less?

Suppose that 5% of teachers at a university attended a conference. If 4000 teachers are enrolled at the university, about how many teachers attended the conference? 2000 200 20 3800

A recent survey reports that 22% of students take the bus to campus. If 660 students commute to campusby bus, how many students participated in the study?

In a sample of 169 students, 16 said they have donated blood. What percent of the students have donated blood?