a) Student's t-test 21. Use the following table to answer the question. The following table summarizes the outcomes of a study that researchers carried out to determine if females expressed a greater fear of heights than males. Expressed a fear of heights Did not express a fear of heights Men 68 94 Women 109 89 Find the expected number of men who should express a fear of heights, if the variables are independent. Round to the nearest whole number. A) 93 B) 80 C) 87 D) 97

Q: The question is attached

A:

Q: 5 -100 12 8

A: Solve the given

Q: b. 14C11

A: nCr=n!r!×(n−r)!r!=r(r-1)(r-2)×....×3×2×1

Q: Need help! 2 questions

A: Pick the odd one out.

Q: 6.5+ 4

A: To simplify given

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A: Here we have to find the integral value.

Q: Rang lertex = (-7;3) qu'od

A: The quadratic function has vertex (-2,3) and a point on graph 1, 12

Q: ex- 12

A: Given: y=ex-12 we know that am-n=aman

Q: I'm lost

A:

Q: 2 questions in pictures

A:

Q: 7 to the power of 18

A: To determine: 7 to the power of 18

Q: Answer unclear

A:

Q: 27+2548+432+9=?

A: Given that the expression is

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A: This is improper integral of first kind, limit is ♾️

Q: thic Sint Costock

A:

Q: Kinda lost

A: here the graph passes two times  through the x -axis  so there will be two roots

Q: | 2 0.32

A: The given distribution is, X 2 3 4 P(X) 0.32 0.48 0.20

Q: step 1 wrong

A: