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sweet-ann [11.9K]
3 years ago
8

What would be the best way to get an unbiased sample that represents the population for the following topic: How do people feel

about the new lit soccer fields?
1. Ask people playing on the soccer fields.
2. Randomly select 20 or 30 people to ask their opinion.
3. Ask people who live next to the soccer fields.
4. Ask, "Isn't it great people can play soccer at night?"
Mathematics
1 answer:
timama [110]3 years ago
4 0
2. random samples are the least biased samples.
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The longest human power sporting event is the tour de France cycling race in a particular year the average speed for the winner
sergey [27]

Answer:

The winner completed the race in 96 hours and 52 minutes.

Step-by-step explanation:

Given:

Distance of the cycling race = 2292 miles

Average speed of the winner = 23.66\  mph

We need to find time required by winner to complete the race.

Solution:

Now we know that;

Time required can be calculated by dividing Total Distance from the Average speed.

framing in equation form we get;

time required by winner to complete the race = \frac{2292}{23.66} = 96.87\ hrs

Now converting 0.87\ hrs into minutes we get;

0.87\times 60= 52.2\approx 52\ mins

Hence the winner completed the race in 96 hours and 52 minutes.

3 0
3 years ago
I suck at math. help me. i would app it.
Verizon [17]

Answer:

x= 2

Step-by-step explanation:

y = 7 means it is parallel to the x axis . so the perpendicular line is to be parallel yo the y axis. .

so the equation is to be like x = c

but it is passing (2,13)

so the equation is

x= 2

3 0
3 years ago
I know the answer but the calculator doesn't seem to give the right one
Diano4ka-milaya [45]

Answer:

Make sure the mode is on degree and not radian! Common mistake

6 0
3 years ago
Can someone help me
marshall27 [118]

Answer:

16682.7 cm³

Step-by-step explanation:

The total volume is the volume of the cone plus half the volume of a sphere:

V = ⅓ π r² h + ½ (4/3 π r³)

V = ⅓ π r² h + ⅔ π r³

V = ⅓ π r² (h + 2r)

Given that r = 4.15 cm and h = 10.2 cm:

V = ⅓ π (4.15)² (10.2 + 2×4.15)

V ≈ 333.65

The volume needed for 50 cones is therefore:

50V ≈ 16682.7 cm³

7 0
4 years ago
Andy is rewarded each time his current grade of C improves his goal of an A grade. What term describes successive close approxim
Dmitry [639]

Answer:

Shaping

Explanation:

Shaping is the method of  successively reinforcing closer and closer approximations to a target ultimate behavior. Shaping includes reinforcing responses which are approximating to the one needed. The shaping method is important because an individual is not always able to naturally exhibit the exact target behavior but by reinforcing the behavior closer to the target behavior, the terminal behavior can be learnt and taught. Shaping is carried out by successive approximation. This is done when the the target response is so rare that it will take a lot of time waiting for the response to take place so that it can be reinforced. In the given question Andy is rewarded every time his current grade C closely approximated to the desired goal that is A grade. So through these subtle reinforcements Andy's behavior is shaped.

The steps in shaping are:

  • Reinforce any response which is close to the target terminal behavior in some way.
  • Reinforce the response more closely associated and resembled with desired behavior. The previous behavior should no longer be reinforced.
  • Continue reinforcing the responses that more closely approximates target behavior.
  • Continue to reinforce the subsequent approximations until the desired behavior is met.
  • Reinforce only the ultimate desired behavior once the desired behavior is reached.

Example:

Suppose a teacher wants her student give presentation in front of the whole class but the student is shy so he would not be capable of giving a presentation at once. So the student should be given rewards for his behaviors/responses that approximates closely to the desired goal. Such as giving him reward when he stands in front of class. Next, giving him reward when he introduces himself to the class at the start of presentation. Rewarding him when he tells the topic of the presentation. Ultimately he can give a presentation. Shaping can be achieved this way.

7 0
3 years ago
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