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Anastaziya [24]
3 years ago
7

Whole numbers are written on cards and then placed in a bag. Tyra selects a single card, writes down the number. and then placed

it back in the bag. She repeats this 62 times.
Tyra calculates the relative frequency of each number card

Which statement about Tyra's experiment is true?

A. The out comes do not appear to be equally likely, so a uniform
probability model is a good
to represent the probabilities in Tyra's experiment.

B. The outcomes do not appear to be equally likely, so a uniform propabililty model is not good model to represent the probabilities in Tyra's experiment

C. The outcomes do not appear to be equally likely, so a uniform probability model IS not good modelto repersent the probabilities in Tyra's experiment.

C. The outcomes appear to be equally likely, so a uniform probability model is a good model to repersent the probabilities in Tyra's experiment.

D. The outcomes appear to be equally likely, so a uniform probability model is not good model to represent the propabililtes in Tyra's experiment.

Mathematics
1 answer:
wariber [46]3 years ago
3 0
The tables shows that the relative frequencies for each number are very similar 0.19, 0.20 and 0.21.

That drives to tell that the outcomes appear to be equally like.

That means that the probabilities are uniform, so the answer is:
<span>The outcomes appear to be equally likely, so a uniform probability model is a good model to repersent the probabilities in Tyra's experiment.</span>
 

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9966 [12]

Answer:

2nd option is the correct one

5 0
2 years ago
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a bookstore has 780,000 and sales revenue in 2005 $190,000 2011 assuming a constant annual rate of decrease what is the predicte
AysviL [449]

Answer5,90,000

Step-by-step explanation:

780,000 subtract 190,000 = 590,000

after every 6 years

i'm not sure if its correct. please let me know

7 0
2 years ago
At science camp, the kitchen served half of their blueberries with breakfast. After dinner, they put the remaining 5{,}270 \text
olga nikolaevna [1]

Answer:

10.54 kg

Step-by-step explanation:

Given that :

Half of blueberries is served with breakfast

The remaining 5270g is served with dinner

How many kilograms of blueberries did the science camp start with :

Total grams of blue berries :

(Grams served at breakfast + grams served at dinner)

Let total blueberries = x

x/2 + 5270 = x

(x + 10540) /2 = x

x + 10540 = 2x

10540 = 2x - x

x = 10540 grams

Amount of kilograms science camp started with = (10540) / 1000 = 10.54 kg

7 0
3 years ago
1 2/5m-3/5(2/3m+1) How do you solve this problem
igor_vitrenko [27]

Step-by-step explanation:

I am not sure what you mean by "solve".

I assume you mean simplify the expression.

and then it is very tricky to find the true original expression the way you typed it.

I think you meant

1 2/(5m) - 3/(5(2/(3m + 1)))

1 = 5m/5m

1 2/(5m) = (5m+2)/5m

3/(5(2/(3m + 1))) = 3/(10/(3m + 1)) = 3/1 / (10/(3m + 1))

when dividing by a fraction, it is the same as multiplying with the upside-down fraction

so, this is the same as

3/1 × (3m + 1)/10 = (3(3m + 1)) / (10×1) = (9m + 3)/10

this would give us in total

(5m + 2)/5m - (9m + 3)/10

to do the subtraction we need to bring both fractions to the save denominator (lower part).

it seems to me the easiest one would be 10m.

so,

2×(5m + 2)/10m - m×(9m + 3)/10m =

= (10m + 4)/10m - (9m² + 3m)/10m =

= (10m + 4 - 9m² - 3m)/10m = (-9m² + 7m + 4)/10m

if we want to transform this back to a sum of fractions :

4/10m - (9m² - 7m)/10m = 2/5m - (9m - 7)/10

5 0
2 years ago
Evaluate the expression x+4x-3+3x^2-2x when x = 5
Setler79 [48]

Given:

The expression is

x+4x-3+3x^2-2x

To find:

The value of given expression when x=5.

Solution:

We have,

x+4x-3+3x^2-2x

Substituting x=5 in the above expression, we get

=(5)+4(5)-3+3(5)^2-2(5)

=5+20-3+3(25)-10

=5+20-3+75-10

On further simplification, we get

=(5+20+75)+(-3-10)

=100+(-13)

=100-13

=87

Therefore, values of the given expression at x=5 is 87.

5 0
2 years ago
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