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2 years ago

You and a friend are playing a game by tossing two coins. If both coins land

Mathematics

2 answers:

Novosadov [1.4K]2 years ago

3 0

c. No. You have a probability of winning, while your friend has a
probability of winning.
Or it’s A

klio [65]2 years ago

3 0

Answer:

Step-by-step explanation:

Let the random variable X be the number of heads that come up when a fair coin is tossed 4 times. Then X∼B(4,12). We want there to be exactly two heads (forcing the other two tosses to be tails), so P(X=2)=(42)(12)2(12)2=38.

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A manager receives 8 applications for a specific position. She wants to narrow it down to 5. In how many ways can she rank 5 app

nata0808 [166]

Answer:

56 number of ways

Step-by-step explanation:

This question is a combination question since it involves selection.

Generally, if r objects are to be selected from n pool of objects, this can be done in nCr number of ways.

nCr = n!/(n-r)!r!

If a manager receives 8 applications for a specific position and wants to narrow it down to 5, the number of ways he can do this is 8C5

8C5 = 8!/(8-5)!5!

= 8!/3!5!

= 8*7*6*5!/3*2*5!

= 8*7*6/3*2

= 8*7

= 56 number of ways.

This means that the manager can rank 5 applications in 56 number of ways

7 0

2 years ago

41 packages are randomly selected from packages received by a parcel service. the sample has a mean weight of 20.6 pounds and a

lina2011 [118]

Using normal distribution $\alpha = 1-0.95=0.05$
critical probability $p^{*} = 1 - \frac{ \alpha }{2}$
critical value for the critical probability is CV = 1.96
standard error $SE = \frac{3.2}{ \sqrt{41} } = 0.5$
margin of error = CV*SE = 1.96 * 0.5 = 0.98
95% confidence interval is between μ + 0.98 and <span>μ - 0.98, which is (19.62, 21.58)</span>

6 0

2 years ago

"Express as a mixed numeral: 39/8" is a problem found in a fifth-grade arithmetic textbook. This problem is BEST solved through:

Scilla [17]

Answer:

c. an algorithm

Step-by-step explanation:

Most math problems are best solved using an algorithm. Certainly, converting numbers from one form to another is easily done that way.

_____

The integer part is the whole-number quotient of the division. The fractional part is the remainder divided by the denominator:

39/8 = 32/8 + 7/8 = 4 7/8

5 0

1 year ago

In which triangle is the value of x equal to tan−1(StartFraction 3.1 Over 5.2 EndFraction)? (Images may not be drawn to scale.)

FromTheMoon [43]

Answer:

The angle opposite to side with length 3.1 is x

The triangle in the attached figure

Step-by-step explanation:

we know that

In a right triangle the tangent of an angle x is equal to divide the opposite side to angle x by the adjacent side to angle x

In this problem we have

$x=tan^{-1}(\frac{3.1}{5.2})$

therefore

opposite side to angle x is 3.1 units

adjacent side to angle x is 5.2 units

The angle opposite to side with length 3.1 is x

see the attached figure to better understand the problem

3 0

2 years ago

Read 2 more answers

If tan f° = two over one and the measure of segment YW is 8 units, what is the measure of segment XW? triangle XYW in which angl

AVprozaik [17]

Answer:

4 units

Step-by-step explanation:

just took the test and it was right

4 0

2 years ago

Read 2 more answers