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Liono4ka [1.6K]
3 years ago
11

PLEASE HELP!!! NEED THIS ANSWERED!!!!

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
4 0

Exclusive events, for OR we can add probabilities.

P(O or B) = 0.49 + 0.20 = 0.69

Answer 0.69

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Solve the following inequality:
ad-work [718]

Answer:

The answer is option 3.

Step-by-step explanation:

In order to solve the inequality, you have to get rid of -3 by adding 3 to both sides :

k - 3 \leqslant 9

k - 3 + 3 \leqslant 9 + 3

k \leqslant 12

4 0
3 years ago
|9-(-1)|= simplify the expression
Hitman42 [59]

Answer:

10

Step-by-step explanation:

Remove parentheses.

|9+1|

Simplify  9+1  to 10.

|10|

simplify

10

7 0
3 years ago
Marcus ran a 200-meter race in 25 seconds. What is his speed in meters per second?
Oksi-84 [34.3K]

Answer:

200/25 = 8 meters

Step-by-step explanation:

Just take the distance of 200 m and divide it by 25 seconds.

3 0
4 years ago
Read 2 more answers
A number line ranging from 5 to 45 with a box encompassing the numbers 20, 25, and 30.
irina1246 [14]

Answer:

the maximum value is 45

Step-by-step explanation:

  • A box of leaf plot has 5 points and they are:

The minimum, the first quartile (Q1) the median (Q2), the third quartile (Q3), and the maximum. The box encompasses Q1, Q2, and Q3. The maximum is after Q3 and the minimum is before Q1.

In this case,

Q1, Q2, and Q3 are in a range 20-30, thus the maximum come after 30, which is 45

4 0
3 years ago
Use the given information to bound the p-value of the F statistic for a one-tailed test with the indicated degrees of freedom. F
lianna [129]

Answer:

The range of the <em>p</em>-value is: 0.050 < <em>p</em>-value < 0.100.

Step-by-step explanation:

For checking the equivalence of two population variances of independent samples, we use the <em>f</em>-test.

The test statistic is given by:

F=\frac{S_{1}^{2}}{S_{2}^{2}}\sim F_{\alpha, (n_{1}-1)(n_{2}-1)}

It is provided that the hypothesis test is one-tailed.

The computed value of the test statistic is:

<em>F</em> = 4.23.

The degrees of freedom of the numerator and denominator are:

df_{1}=4\\df_{2}=5

Use MS-Excel to compute the <em>p</em>-value as follows:

Step 1: Select function fX → F.DIST.RT.

Step 2: A dialog box will open. Enter the values of f-statistic and the two degrees of freedom.

*See the attachment below.

Step 3: Press OK.

The <em>p</em>-value is, 0.0728.

The range of the <em>p</em>-value is:

0.050 < <em>p</em>-value < 0.100

4 0
4 years ago
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