1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sladkih [1.3K]
3 years ago
15

Assume that instead of conducting experiments, Latané and Darley had used a correlational method to study the relation between t

he number of bystanders who witness an emergency and how quickly a victim receives help. Assume that the correlational data were compatible with results from experiments: the more bystanders, the longer it took bystanders to help. What type of correlation is this?A) a nonlinear correlationB) a zero correlationC) a positive correlationD) a spurious correlationE) a negative correlation
Mathematics
1 answer:
Len [333]3 years ago
7 0

Answer:

  C)  a positive correlation

Step-by-step explanation:

<em>More people ⇒ Longer time</em> is a positive correlation between those variables. However, <em>longer time</em> is not the desired outcome.

Rather, <em>shorter time</em> is the desired outcome. The correlation between <em>more people</em> and <em>shorter time</em> is negative. In order to compute that correlation numerically, one would have to define a function that would give a numerical value for "shorter time" that would model the goodness of outcome as time gets shorter.

You might be interested in
Work out 3% of 860kg<br><br>need this asap!!!
eduard

Answer:

3% of (860 kilograms) =

25.8 kilograms

4 0
3 years ago
Read 2 more answers
If a person tosses a coin 23 times, how many ways can he get 11 heads
EastWind [94]

Tossing a coin is a binomial experiment.

Now lets say there are 'n' repeated trials to get heads. Each of the trials can result in either a head or a tail.

All of these trials are independent since the result of one trial does not affect the result of the next trial.

Now, for 'n' repeated trials the total number of successes is given by

_{r}^{n}\textrm{C}

where 'r' denotes the number of successful results.

In our case n=23 and r=11,

Substituting the values we get,

_{11}^{23}\textrm{C}=\frac{23!}{11!\times 12!}

\frac{23!}{11!\times 12!}=1352078

Therefore, there are 1352078 ways to get heads if a person tosses a coin 23 times.


3 0
3 years ago
What is the area of a circle with a diameter of 12.6 in.?
Zepler [3.9K]

Hey there! I'm happy to help!

To find the area of a circle, you square the radius and then multiply by pi (3.14 in our case).

The radius is half of the diameter.

12.6/2=6.3

We square this.

6.3²=39.69

We multiply by 3.14

39.69×3.14=124.6266

We round to the nearest hundredth, giving us an area of 124.63 in².

Now you can find the area of a circle! Have a wonderful day! :D

5 0
3 years ago
You are facing South. You make an about face, then turn 90 degrees right. What direction are you facing?
Roman55 [17]

Answer:

west

Step-by-step explanation:

4 0
3 years ago
Help guys!!! i have deadline!!!!
svet-max [94.6K]
Answer: 355.49

Step by Step:
82.14+9.77+31.35+41.25=164.51
520-164.51=355.49
8 0
3 years ago
Other questions:
  • 10 &lt; –2b or 2b + 3 &gt; 11
    10·1 answer
  • Can someone help i will give brainilest answer if correct !
    12·2 answers
  • Please explain the solution for this problem.​
    9·1 answer
  • Find the mean of the data in the pictograph below. sundaes in each store
    15·2 answers
  • Ted ran 2/5 in 3/4 hour. What is his speed?
    6·1 answer
  • Kaitlin wants to pour 27.17 grams of salt into a container. So far, she has poured 25.98 grams. How much more salt should Kaitli
    13·1 answer
  • Two high schools are going on a field trip. One rents 8 vans and 9 buses for 228 students. The other rents 4 vans and 5 buses fo
    14·1 answer
  • A dragon lived in a cave.
    11·2 answers
  • 41= 12d-7 solve for d
    9·1 answer
  • Find the length of AB, given that DB is a median of the triangle and AC = 44.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!