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givi [52]
3 years ago
15

According to the 2000 U.S. Census Bureau, 49.65% of Texas residents were male. If one Texan was selected at random in 2000, what

is the probability she was female? a. 0.4965 b. 0.5 c. 0.5035 d. 49
Mathematics
2 answers:
SOVA2 [1]3 years ago
4 0

You subtract 49.65 from 100 to get the percentage of women, which comes to 50.35, and if you turn that into a probability you get .5035.

So the answer's c... hope this helps

Archy [21]3 years ago
3 0

Answer: 0.5035

Step-by-step explanation:

Given: According to the 2000 U.S. Census Bureau, 49.65% of Texas residents were male.

Thus the percent of male in Texas = \frac{\text{Male}}{\text{Total}}\times100=49.65%

When we divide percent by 100, we get the fraction of male to the total population=0.4965

⇒  If one Texan was selected at random in 2000, what is the probability she was male P(M)=0.4965

Since, there are only two events according to gender (Male and Female)

∴ P(M)+P(F)=1

⇒ P(F)=1-P(M)

⇒ P(F)=1-0.4965

⇒ P(F)=0.5035

Hence, If one Texan was selected at random in 2000, the probability she was female =0.5035

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Line segment AB has endpoints A(-1.5, 0) and B(4.5 8). Point C is on line segment AB located at (0, 2)
Pie

Answer:

The ratio of AC/CB=1/3

Step-by-step explanation:

We use the section formula:

(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})

We substitute the point A(-1.5,0) and B(4.5,8).

We plug in the points to get:

(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n})

This is supposed to be equal to: (0,2).

(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n}) = (0,2)

We can equate, corresponding coordinates to find m and n.

\frac{4.5m - 1.5n}{m + n}  = 0

This implies that:

4.5m - 1.5n = 0

4.5m  = 1.5n

\frac{m}{n}  =  \frac{1.5}{4.5}

\frac{m}{n}  =  \frac{1}{3}

Therefore the ratio is m:n=1:3

4 0
3 years ago
If you deposit $6000 into an account paying 8% annual interest compounded monthly, how much money will be in the account after 7
Leviafan [203]

Answer:

$10278

Step-by-step explanation:

Given data

P= $6000

R= 8%

T= 7 years

The compound interest formula is

A=P(1+r)^t

substitute

A=6000(1+0.08)^7

A=6000(1.08)^7

A=6000*1.713

A=$10278

6 0
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The movie club is having a new member sale, so Mindy signs up. The equation -0.4x + 0.05y - 1.25 = 0 relates y, the total cost,
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Step-by-step explanation:

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rodikova [14]

Answer:

The standard deviation of X is 0.7

Step-by-step explanation:

We are given the following distribution:

    x:     0        1         2       3    

P(x):    0.3     0.5     0.2     0.4

We have to find the standard deviation of X.

Formula:

E(x) = \displaystyle\sum x_iP(x_i)\\\\E(x) =0(0.3) + 1(0.5) + 2(0.2) + 3(0.4)\\\\E(x) = 2.1\\\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\\\E(x^2) =0(0.3) + 1(0.5) + 4(0.2) + 9(0.4)\\\\E(x^2) = 4.9\\\\Var(x) = E(x^2) - (E(x))^2 = 4.9-(2.1)^2 = 0.49\\\\\sigma(x) = \sqrt{Var(x)} =\sqrt{0.49} = 0.7

Thus, the standard deviation of X is 0.7

6 0
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A shoebox is 14 inches long and 9 1/2 inches wide. Its volume is 665 cubic inches. Which equation can you use to find how tall t
Vilka [71]

Lets see

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B=9 1/2=9.5in

L=14in

Now

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7 0
2 years ago
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