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3 years ago

Bob and ling are playing a number pattern game. Bob wrote the following sequence

2 answers:

7 0

The rule is decreasing by 2.1 because when you subtract 28.9-26.8 you get 2.1 and when you subtract 26.8-24.7 you also get 2.1
The unknown term is 22.6 because 24.7-2.1 is 22.6

seraphim [82]3 years ago

6 0

The unknown term is 22.6

28.9
26.8
24.7
22.6
20.5

As you can see, the numbers after the decimal point descends by 1 point. 9 , 8 , 7 , 6 , 5
While the numbers before the decimal point descends by 2 points, 28 , 26 , 24 , 22 , 20

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In a market test of a new chocolate raspberry coffee, a poll of 400 people (sample 1) from Dobbs Ferry showed 250 preferred the

lara [203]

Answer:

Proportion

Step-by-step explanation:

Given that a poll of 400 people (sample 1) from Dobbs Ferry showed 250 preferred the new coffee

Sample proportion for I = $\frac{250}{400} =0.625$

In Irvington, 170 out of 350 people (sample 2) preferred the new coffee.

Sample proportion for II = $\frac{170}{350} =0.4857$

Both are in decimals thus comparing is easier

We find that

$0.625>0.4857$

Hence a higher proportion of people in Dobbs Ferry prefer the new coffee.

The statistic test type is use of proportion

3 0

3 years ago

A random sample of 150 children who visit the library werevasked if they prefer vanilla or chocolate. The results are shown in t

Setler79 [48]

Answer:

The facts are

OF the boys surveyed more boys preferred vanilla.

OF the girls surveyed more girls pref chocolate.

74 liked vanilla

76 liked chocolate

I think they are asking for the word ''THERE DOES''

As they say ''.......appear to be an association between gender and flavor preference. This is true statement as 41 boys liking vanilla is=54% of those that preferred vanilla in the vote were boys and more boys may have been asked to begin with for choice of vanilla as only 43% of girls in total were asked out of the 150 people asked.

And 59.21% of those that preferred chocolate were girls.

We can say there is a association with gender flavor as we know that there were lesser amounts of girls than boys to begin with yet of the 100% people asked in library 43% were girls and more than 59% had agreed chocolate was their preference. .

We see that 64 girls were asked and 86 boys were asked and this proves that As 57% of people asked were boys to begin with as there were 64 girls and a greater amount 86 boys making the boys 57% of 150 asked, which makes the girls only 43% of the people asked so it can be an association to preferences as there were so many more girls agreeing chocolate.

Step-by-step explanation:

8 0

3 years ago

The was question will be in the picture urgent please help

Katyanochek1 [597]

Answer:

Step-by-step explanation:

it's a scsle factor of 3.

5 0

3 years ago

Read 2 more answers

Many states assess the skills of their students in various grades. One program that is available for this purpose is the Nationa

Nataly [62]

Answer:

A score of 314 is needed to be in the top 25% of students who take this exam.

Step-by-step explanation:

We are given that one of the tests provided by the NAEP assesses the reading skills of twelfth-grade students. In recent years, the national mean score was 289 and the standard deviation was 37.

Let X = <u><em>scores of the tests provided by the NAEP</em></u>

The z-score probability distribution for the normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)