Mathematics, 18.02.2021 05:50 christophergaudette0
1. Suppose on a sample of people it is found the mean salary is equal to 30,000. When we
use a statistic like this to simply describe a sample, this is an example of
a) an inferential statistic
b) a descriptive statistic
c) a sample median
d) random sampling
e) b and
2. If we collect observations on 100 people, and measure their IQ, the 100 observations is:
a) a sample
b) a population
c) a sample with likely no variability
da or bare possibilities, depending on the score of the investigation
e) a variable
3. Suppose the trace of a matrix is equal to 10. If this matrix is also an identity matrix, how
many rows must the matrix have?
a) 10
b) equal to the number of columns of the matrix
c) 0
D) A and b
E) impossible to say without further information
4. If it is universally known in general that all cats have four legs, then the conclusion that your particular cat has four legs is an example of:
A.) Inductive inference
B.) Deductive inference
C.) statistical inference
D.) mathematical function
E.) None of the above
Answers: 1
Mathematics, 21.06.2019 19:00
Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1
Answers: 2
Mathematics, 21.06.2019 23:20
1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given
Answers: 3
1. Suppose on a sample of people it is found the mean salary is equal to 30,000. When we
use a stat...
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