Jyoti collects stamps. The table shows the number of stamps she collected over a 12-week period.

A card was selected at random from a standard deck of cards. The suit of the card was recorded, and then the card was put back i

cupoosta [38]

The relative frequency of selecting a diamond from 40 trials of selecting a random card is 30%.

<h3>What is relative frequency?</h3>

The relative frequency of an event is the ratio of total number of favorable or desired outcome to the total number of trails done.

Given information-

The card is selected random from the deck of cards.

Total number of trails is 40.

It is known that the total number of diamond card in a standard deck of card is 11. There is total 40 trials is done in which a random card is selected.

As the relative frequency is the ratio of total number of diamonds to the total number of trials done. Thus,

$f_r=\dfrac{11}{40}\\f_r=0.3$

In the percentage from,

$f_r={0.3}\times100\\f_r=30$

Thus the relative frequency of selecting a diamond from 40 trials of selecting a random card is 30%.

Learn more about the relative frequency here;

brainly.com/question/26177128

5 0

3 years ago

.In a warehouse, there are 40 guitars, 60 bass guitars, and 20 snare drums. An instrument is randomly selected to check the stor

My name is Ann [436]

4:1/6 if you add all the instruments you get 120 then you divide it by six and you get 20 snare drums

4 0

3 years ago

Read 2 more answers

Lulu has to buy paper towels. She can buy 3 rolls for $2.97, 12 rolls for $10.80, or 20 rolls for $18.40. Assuming all the rolls

Maru [420]

The 12 rolls for 10.80 I’m guessing

6 0

3 years ago

Read 2 more answers

Mai wants to make a scale drawing of her kitchen. Her kitchen is a rectangle with length 6 m and width 2 m. She decides on a sca

BigorU [14]

Answer:

Length of scale = 15 cm

Width of scale = 5 cm

Step-by-step explanation:

Dimensions of the kitchen of Mai are given as:

Length of kitchen = 6 m

Width of kitchen = 2 m

Scale to be used = 1 to 40

To find:

The drawing with labeling and dimensions of the scale drawing.

Solution:

First of all, let us understand about the concept of scaling.

Scaling is a method to represent big structures on paper.

For this purpose, we decide a scaling factor and draw the big structures on paper by scaling down (making it small) by using a scaling factor.

Here, the scale factor used is 1 to 40.

i.e. 1 unit on scale is equivalent to 40 units on the actual kitchen.

40 units of kitchen = 1 unit of scale

1 unit of kitchen = $\frac{1}{40}$ units of scale

6 m of kitchen = $\frac{1}{40}\times 6\ m = \frac{600}{40}\ cm = 15\ cm$

Length of scale = <em>15 cm</em>

40 units of kitchen = 1 unit of scale

1 unit of kitchen = $\frac{1}{40}$ units of scale

2 m of kitchen = $\frac{1}{40}\times 2\ m = \frac{200}{40}\ cm = 5\ cm$

Width of scale = <em>5 cm</em>

Please refer to the attached image as well for representation of given scale.

4 0

3 years ago

Solve the inequality:

Allushta [10]

Answer:

x ≤ 1

Step-by-step explanation:

8 + 4x $\geq$ 12

4x $\geq$ 12 - 8

4x ≥ 4

Dividing both sides by 4 gives;

x ≤ 1

3 0

3 years ago