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gavmur [86]
3 years ago
9

Several psychology majors conducted an experiment around campus, asking students to count backwards from 40 to 0 as fast as poss

ible. From their findings, they concluded that out of every 15 students, only 6 could accurately count backwards in less than 15 seconds. They repeated this experiment with the professors. They discovered that their success rate was 140% of the students' success rate. From the list of participants, they randomly selected 10 students and 10 professors. The probability that 4 students who completed the task were selected is S and the probability that 4 professors who completed the task were selected is R. Find the absolute difference in S and R.
Mathematics
1 answer:
Dominik [7]3 years ago
5 0

Answer:

Step-by-step explanation:

POINTS:

- Out of every 15 students, 6 were successful in the task.

- The professors' success rate is 140% of the students' success rate.

j

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Need help tremendously
Alina [70]
<span>basically since 30 minutes is half of an hour, to get to a full hour you can multiply by 2, so you do that for both, 2/3 included so you get 2/3 * 2/1 4/3 is 1 1/3</span>
5 0
3 years ago
Brad can bicycle at a rate of 55km/h. What is his speed in feet per second?
Brrunno [24]
55km/60minuess=0.916km per min. 0.916/60second=0.01527km per sec. convert km to feet. which is 50 feet. your answer is 50 feet per second
3 0
4 years ago
Show that the equation x^3+6x-5=0 has a solution between x=0 and x=1
Mnenie [13.5K]

Answer:

Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.

Step-by-step explanation:

The equation f(x) given is:

f(x) = x^3+6x-5

For x = 0. the value of the expression is:

f(0) = 0^3+0-5\\f(0) = -5

For x = 1, the value of the expression is:

f(1) = 1^3+6-5\\f(1)=2

Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.

In other words, there is at least one solution for the equation between x=0 and x=1.

6 0
3 years ago
A given line has the equation 10x + 2y = −2.
Gekata [30.6K]
Y = -5x + 12 since the slope of that line is -5x and in order to pass through that point the y intercept must be 12
7 0
3 years ago
Read 2 more answers
5. There are four times as many
lapo4ka [179]
There are 32 questions
5 0
4 years ago
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