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3 years ago

You spin the spinner twice. Find the probability of spinning a 2 then a number greater than 2. ( 6 spaces)

Mathematics

1 answer:

Alina [70]3 years ago

3 0

Answer:

1/9

Step-by-step explanation:

You take 1/6 times 4/6 which equals 1/9.

Hope that helped! :)

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Bria ordered 145 centimeters of fabric. Jayleen ordered 1.5 Meters or fabric. who ordered more fabric

liq [111]

Jayleen ordered more fabric by 5 centimeters...
Bria ordered 145 cm and Jayleen had 1.5 m ( 150 cm )
So 145<150
Therefore Jayleen ordered more than Bria.

4 0

3 years ago

Jasmine baby-sits for $8.25 per hour. If she baby-sits for 12 hours in one weekend, how much money will she earn? Write your ans

forsale [732]

Answer:

Step-by-step explanation:

8.25*12= $99.00

7 0

3 years ago

A granite monument has a volume of 25,365.4 cm3. The density of granite is 2.7 g/cm3. Use this information to calculate the mass

Sladkaya [172]

Let units cancel out just like numbers...

25365.4cm^3(2.7g/cm^3)=68486.58g which is 68486.6g (to nearest tenth)

8 0

3 years ago

Read 2 more answers

Calculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American a

spin [16.1K]

Answer:

$Mean = 68.9$

$s^2 =18.1$ --- Variance

Step-by-step explanation:

Given

$\begin{array}{cccccc}{Class} & {51-58} & {59-66} & {67-74} & {75-82} & {83-90} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}$

Solving (a): Calculate the mean.

The given data is a grouped data. So, first we calculate the class midpoint (x)

For 51 - 58.

$x = \frac{1}{2}(51+58) = \frac{1}{2}(109) = 54.5$

For 59 - 66

$x = \frac{1}{2}(59+66) = \frac{1}{2}(125) = 62.5$

For 67 - 74

$x = \frac{1}{2}(67+74) = \frac{1}{2}(141) = 70.5$

For 75 - 82

$x = \frac{1}{2}(75+82) = \frac{1}{2}(157) = 78.5$

For 83 - 90

$x = \frac{1}{2}(83+90) = \frac{1}{2}(173) = 86.5$

So, the table becomes:

$\begin{array}{cccccc}{x} & {54.5} & {62.5} & {70.5} & {78.5} & {86.5} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}$

The mean is then calculated as:

$Mean = \frac{\sum fx}{\sum f}$

$Mean = \frac{54.5*4+62.5*3+70.5*11+78.5*13+86.5*4}{6+3+11+13+4}$

$Mean = \frac{2547.5}{37}$

$Mean = 68.9$ -- approximated

Solving (b): The sample variance:

This is calculated as:

$s^2 =\frac{\sum (x - \overline x)^2}{\sum f - 1}$

So, we have:

$s^2 =\frac{(54.5-68.9)^2+(62.5-68.9)^2+(70.5-68.9)^2+(78.5-68.9)^2+(86.5-68.9)^2}{37 - 1}$

$s^2 =\frac{652.8}{36}$

$s^2 =18.1$ -- approximated

5 0

3 years ago

Find the gain or loss per cent, if <br>C.P. = 200 and S.P. = 224

motikmotik

Ah sana masgot nyu toh natatae na ako saglit lang 3583 is answer kaso nag huhugas pa ako ng plato saglit

7 0

3 years ago