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2 years ago

9

A standard die is rolled. Find the probability that the number rolled is odd. Express your answer as a fraction in lowest terms

or a decimal
rounded to the nearest millionth.

1 answer:

Alex777 [14]2 years ago

5 0

Answer: 1/2

Step-by-step explanation:

There are 3 odd numbers on a six sided dice.

The probability that the number rolled is an odd is 3/6 or 1/2

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Semenov [28]

Answer:

$\sum\limits^7_{n=1}(4n - 3)$

Step-by-step explanation:

Given

$1 + 5 + 9 + .....$

Required

Write a definition

First, we derive a formula for the series using:

$T_n = a + (n - 1)d$

From the attached data;

$a = 1$

$d = 5 - 1 = 4$

So:

$T_n = a + (n - 1)d$

$T_n = 1 + (n - 1) * 4$

$T_n = 1 + 4n - 4$

Collect like terms

$T_n = 4n - 4+1$

$T_n = 4n -3$

So, the definition for first 7 terms is:

$\sum\limits^7_{n=1}(4n - 3)$

6 0

2 years ago

Pls answer ( why do we need 20 characters )

ruslelena [56]

Answer:

Step-by-step explanation:

7 0

3 years ago

Sum of two digit number is9.When we interchange the digits it is found that the resulting new number becomes twice the other num

ruslelena [56]

Answer:

4 and 5

Step-by-step explanation:

Let the numbers be x and y

If their sum is 9, hence;

x + y = 9 ....1

When reversed

10y+x = 2(10x+y)

10y+x = 20x + 2y

10y - 2y = 20x - x

8y = 19x

y = 10x/8 ...2

Substitute equation 2 into 1;

From 1;

x+y = 9

x +(10x/8) = 9

18x/8 = 9

18x = 72

x = 72/18

x = 4

Since x+y =9

y = 9-x

y =9-4

y = 5

Hence the numbers are 4 and 5

8 0

3 years ago

Draw three line segments

kodGreya [7K]

Here ya go!!! this should be correct

6 0

3 years ago

What is the mean absolute deviation of the data set?<br><br> 2, 2, 5, 6, 8, 4, 8, 5

DedPeter [7]

ANSWER

The mean absolute deviation is 1.75

EXPLANATION

The given date set is 2, 2, 5, 6, 8, 4, 8, 5

The mean is

$\bar X = \frac{2 + 2 + 5 + 6 + 8 + 4 + 8 + 6}{8} = 5$

The mean absolute value deviation is given by:

$=\frac{ \sum |x -\bar X| }{n}$

$= \frac{ | 2 - 5| + |2 - 5|+ |5- 5|+ |6 - 5|+ |8 - 5| + |4 - 5|+ |8- 5|+ |5 - 5| }{8}$

$= \frac{ 3 + 3+ 0+ 1+ 3 + 1+3+ 0}{8}$

$= \frac{14}{8}$

$= 1.75$

7 0

3 years ago