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2 years ago

Student attendance at football games

Mathematics

1 answer:

Paladinen [302]2 years ago

4 0

Collin's sampling method will better represent the entire population.

<h3>Missing part of the question</h3>

Determine which sampling method will better represent the entire population.

<h3>How to determine the better method?</h3>

From the question, we understand the Collin selected random names from the school directory.

While Karl surveyed only the students sitting close to him.

Karl's method is biased because students sitting far from him do not have a chance of being surveyed.

Hence, Collin's sampling method will better represent the entire population.

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Which expression is equivalent to<br> %?

olganol [36]

Answer:

$x^{\frac{2}{3} }$

Step-by-step explanation:

⇒ $x^({\frac{4+2}{3}) } ^{\frac{1}{3} }$

⇒ $(x^{\frac{6}{3} })$

⇒ $(x^{2} )\frac{1}{3}$

⇒ $x^{\frac{2}{3} }$

8 0

2 years ago

A chemist has three different acid solutions. The first acid solution contains 25%

PilotLPTM [1.2K]

Solution:
Let the volume (in litres) of acids used be:
x1=amount of 25% acid
x2=amount of 40% acid
x3=3*x2=amount of 60% acid

8 0

3 years ago

I need help here is the problem

leva [86]

Answer:

12.96pi

Step-by-step explanation:

area = r^2 *pi

= 3.6^2 * pi

= 12.96pi

5 0

3 years ago

Read 2 more answers

If a line perpendicular to 2y=x+5 that passes through (2,1) using the slope- intercept form

arlik [135]

Slope of 2y = x + 5:-
This is y = 0.5 x + 2.5 in slope intercept form so its slope = 0.5

Slope of the line perpendicular to it = -1 / 0.5 = -2

it passes through (2 , 1) so we have

y- 1 = -2(x - 2)
y = -2x + 4 + 1

The answer is y = -2x + 5

4 0

3 years ago

Customers arrat a service window according to a poisson process with an average of 0.2 per minute.

suter [353]

Answer:

Step-by-step explanation:

Given that customers arrat a service window according to a poisson process with an average of 0.2 per minute

= 12 per hour.

a) the probability that the time between two successive arrivals is less than 6 minutes

= For one hour more than 60/6 =10 customers arrive.

P(X>10) = 0.6528

b) Prob that there will be exactly three arrivals during a given 10-minute period

P(x=3) for average 2

= 0.1804

3 0

3 years ago