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adelina 88 [10]
3 years ago
11

I’m confused please solve it.

Mathematics
1 answer:
Allushta [10]3 years ago
3 0

Answer:

b = 65

Step-by-step explanation:

b is the y- intercept

if you start to graph 6x from the two points that are already given then it'll find the y-intercept which is b

here's the graph

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E<br>_ = 3 what is e<br>2 <br>im giving good
notsponge [240]

Answer:

e=2

Step-by-step explanation:

multiply both sides by 2 to get the variable by itself.

e=6

3 0
2 years ago
Read 2 more answers
In 1990, 1000 adults were randomly selected and each was asked if they smoked, 300
Oduvanchick [21]

Answer:

 The proportion of smokers was higher in 1990 than in 2000

Step-by-step explanation:

Solution

Recall that,

The total number of sample 1 (n1) = 1000

Total  sample 2 number  (n2) = 2000

The number of favourable events (X1) = 300

The number of favourable events (X2) = 500

so,

p₁ = X₁/n₁ = 300/1000 = 0.3

p₂ = X₂/n₂ =500/2000 =0.25

α = 0.05

We are interested in testing the hypothesis.

The  hypothesis (Null) ....>  H₀ : p₁ = p₂

Alternate hypothesis------ > H₁ : p₁ > p₂

Thus,

P = X₁ + X₂/ n₁ + n₂

P =300 + 500/1000 +2000

P =800/3000

=0.2667

Now,

Z₀ = P₁ - P₂/√ P (1 -P) (1/n₁ + 1/n₂)

Z₀ =  0.3 - 0.25/√0.2667  (1 - 0.2667) (1/1000 + 1/2000)

Z₀ = 0.4999999999999999/√ 0.2667 (0.7333000000000001) (0.001 +0.0005)

Then,

Z₀ = 0.4999999999999999/√0.00029335666500000004

Z₀ = 2.9193

so,

zα/2 = z0.05/2 =z0.025

zα/2 = 1.6448536269514722

Now, we apply the decision rule:

Decision Rule: Reject the null hypothesis if the statistic value test is higher than the critical value 1.6448536269514722

The statistic value, 2.9193 is greater than the critical value 1.6448536269514722,  then we will reject the null hypothesis.

Therefore, the proportion of smokers was higher in 1990 than in 2000

3 0
3 years ago
Which question is a statical question
kolbaska11 [484]

Answer:

B is a statistical question

Step-by-step explanation:

A and C ask for qualitative data or categorical data

B asks for quantitative data or numerical data

We obviously use numerical data for statistical work, so B is the answer

5 0
3 years ago
The probability of Roger winning the tournament, given that Stephan wins, is 0. The probability of Stephan winning the tournamen
Fofino [41]
They're both true.  Both statements, together, make one
single fancy way of saying "Only one man can win.".
7 0
3 years ago
What is the value of n in this proportion? Plz help.<br><br> 16/40 = 8/n
Vlada [557]
I think is 20 but i am not sure
8 0
3 years ago
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