line slope (0,3)(5,7)
The ratio of boys to the total number of students is 2:5. If there are 123 girls, how many boys are there? I estimated 49.2, is that correct?
Is 1/6 > or< 0.16, because the repeating decimal in 1/6 is what confuses me.
A 143m wire is cut into three pieces. The second is 3m longer than the first. The third is 4/5 as long as the first. How long is each piece?
Suppose we take a random sample of size n from a normal population with variance, σ2 . It can be shown that (n−1)s2/σ2 has a chi-square distribution with n−1 degrees of freedom, where s is the sample variance. Below is a random sample of size 8 drawn from...
1) From 1892 to 1954, millions of immigrants entered the United States through an immigration station in the Northeast called a. Empire State Station. b. Big Apple Harbor. c. Manhattan Port. d. Ellis Island. 2) Northeastern cities are important trade centers. Which of the foll...
Less water flowing into it, which can change the mineral and salt composition of the water, cause changes in flow and temperature, and these in turn can dramatically change the types of plant and animal life in the area. Of course, this is a moot point because virtually all ma...
Consider the hypothesis test given by Ho:u=530, H1:u does not equal 530. In a random sample of 85 subjects, the sample mean is found to be 522.3. Also, the population standard deviation is 29. Determine the P-value for this test. Is there sufficient evidence to justify the rej...
The IQ scores are normally distributed with a mean of 100 and a SD of 15. A) What is the probability that a randomly person has an IQ b/t 85-115? Show work B) Find the 90th percentile of the IQ distribution? C) If a random sample of 100 people are selected, what is the SD of t...
Theoretical&Experimental Probability please help!
BUT AT LEAST HE TRY GOOD TRY MAN GOOD TRY :D