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A cognitive psychologist studying reading comprehension wanted to know what would happen if all college students were taught bet

Salsk061 [2.6K]

Answer:

D.the treatment group (placebo or reading strategies)

Step-by-step explanation:

This cognitive psychologists wants to find out if better reading strategies when taught to students would have any effect on their test scores.

So the dependent variable in this experiment would be the test scores that she wants to find from the test.

While the independent variable would be the treatment group which is the placebo or treatment. The psychologist wants to measure outcomes in this dependent variable using changes in the independent variable (placebo/treatment).

4 0

3 years ago

A shipping company charged $15 to ship a package and 5% to insure the package. What was the total cost to ship this particular i

Crank

The shipping would be 15.75 because 5% of 15 is 0.75, so add 15 to 0.75 and the answer is 15.75 :)

5 0

3 years ago

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What is the range of y = sin-1x? [–1, 1] [0, π] left-bracket negative startfraction pi over 2 endfraction, startfraction pi over

soldi70 [24.7K]

The range of the provided inverse sine function in terms of x, and y y = sin-1x is [-π/2, π/2].

<h3>What is the range of the function?</h3>

Range of a function is the set of all the possible output values which are valid for that function.

The trigonometry function given in the problem is,

$y = \sin^{-1}x$

The above function can be written as,

$\sin y = x$

The above function is the arc of sine function. The domain of arc of sine ranges from -1 to 1.

$-1\leq x\leq1$

This is the domain of the inverse of sine function. In the attached image below, the graph of inverse sine function is plotted. The range of this function is,

$-\dfrac{\pi}{2}\leq x\leq\dfrac{\pi}{2}$