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4 years ago

9

Hi. I really need help with this question. I tried it myself but don't fully understand, so could someone please check it for me

? Thank you so much.

1 answer:

Reil [10]4 years ago

7 0

Answer:

C.

Step-by-step explanation:

that is the correct answer

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The ability of lizards to recognize their predators via tongue flicks can often mean life or death for lizards. Seventeen juveni

Sloan [31]

Answer:

Confidence level is (380.7133, 533.2867)

Step-by-step explanation:

Responses in number of tongue flicks per 20 minutes of lizards, are: 727,217, 268, 438, 625, 319, 200, 591, 574, 727, 693, 336, 302, 761, 268, 353, 370

n = 17

Mean (μ) is:

$\mu=\frac{{\Sigma}x}{n} = \frac{727+217+ 268+ 438+ 625+ 319+ 200+ 591+ 574+ 727+ 693+ 336+ 302+ 761+ 268+ 353+ 370}{17} = 439.3529$

Standard deviation (σ) is:

$\sigma=\sqrt{\frac{\Sigma(x-\mu^2)}{n} } =\sqrt{\frac{(727-457)^2+(217-457)^2+...+(370-457)^2}{17} } =191.2$

The confidence interval (c) = 90% = 0.9

$\alpha=1-0.9=0.1\\\frac{\alpha }{2} = 0.05\\Z_{\frac{\alpha }{2} }=1.64$

Margin of error (e) = $=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} }=1.64*\frac{191.2}{\sqrt{17} }=76.2867$

Confidence level = μ ± e = 457 ± 76.2867 = (380.7133, 533.2867)

8 0

4 years ago

Find the following amount.<br> What is 75% of 16?

raketka [301]

Answer:

12

Step-by-step explanation:

Convert 75% into a fraction:

.75

Then multiply .75 by 16.

<em>Hence, </em><em>the answer is 12.</em>

<em />

Hope this helped! (Please mark this as the Brainliest!)

3 0

3 years ago

Read 2 more answers

What is the volume of a sphere with a radius of 9.7 ft, rounded to the nearest tenth of

viktelen [127]

Answer:

3923

Step-by-step explanation:

Have a nice day!

3 0

3 years ago

Read 2 more answers

I’m super confused on what this means

vampirchik [111]

The two triangles are congruent to each other, meaning they’re proportional to each other but not equal.
The question is asking you to list the angles that are congruent to each other (when talking about angles and congruency, if two angles are congruent, they are equal) and the sides that are congruent to each other (as long as all sides are proportional to each other, they are congruent (Triangle ABC has side lengths of 1, 2, 3 and Triangle DEF has side lengths of 2, 4, 6; these two triangles are congruent))

3 0

3 years ago

Tell which quadrant each of the following points is located in: I, II, III, or IV.

gizmo_the_mogwai [7]

answer:

11.Quadrant 1 10.quadrant II 9. IV 13. IV 12. III 14. III 16: III 17: II 15 I

Step-by-step explanation:

this should help https://socratic.org/questions/what-is-the-order-of-quadrants-in-a-graph just look at the coordinates x and y if they correspond to which quadrant.

8 0

4 years ago