Help if you can pls. if you can’t see the pic don’t bother answering.

Viktor [21]

Answer:

4/3 or 1 1/3

Step-by-step explanation:

To find slope, we subtract the y-values (9 - 5), then divide the difference we find from that by the difference of the x-values (6 - 3). So, let's go ahead and do that now. First, what's 9 - 5? Well, the answer is 4. Next, we have to divide this value by 6 - 3, which is equivalent to 3. Then, we divide the two numbers - what is 4 ÷ 3? Well, we can represent this as 4/3, or 1 1/3. Hopefully that's helpful - if you have any questions on that, let me know! :)

3 0

2 years ago

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You are conducting a study to see if the accuracy rate for fingerprint identification is significantly different from 0.4. You u

Ludmilka [50]

Answer:

a)

Calculated Z -value = 2 < 2.326 at 0.02 level of significance

Null hypothesis is accepted

The accuracy rate for fingerprint identification is not significantly different from 0.4.

b)

P-value of this sample = 0.0455

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 298

Sample proportion

$p^{-} = \frac{x}{n} = \frac{136}{298} = 0.456$

Population proportion

p = 0.4

Null hypothesis :-

The accuracy rate for fingerprint identification is not significantly different from 0.4

H₀: p=0.4

Alternative Hypothesis :-

The accuracy rate for fingerprint identification is significantly different from 0.4

H₁: p≠0.4

Step(ii):-

Test statistic

$Z = \frac{p^{-} -P}{\sqrt{\frac{P Q}{n} } }$

$Z = \frac{0.456-0.4}{\sqrt{\frac{0.4 X 0.6}{298} } }$

Z = 2

Given level of significance α=0.02

critical value Z = 2.326

Calculated Z -value = 2 < 2.326 at 0.02 level of significance

Null hypothesis is accepted

The accuracy rate for fingerprint identification is not significantly different from 0.4.

P- value

P( Z>2) = 1- P( Z <2)

= 1 - ( 0.5 - A(2)

= 0.5 - 0.4772

= 0.0228

Given two tailed test = 2 ×P( Z >2)

= 2 × 0.0228

= 0.0456

The p-value is 0.0456

3 0

3 years ago

Two dice are thrown. Let E be the event that the sum of the dice is

bearhunter [10]

Answer:

P(E) = 1/2
P(F) = 11/32
P(G) = 1/6
P(EF) = 5/52
P(FG) = 1/32
P(EG) = 1/6

Step-by-step explanation:

For the sum to be even, both dice can be odd, or both even. The probability of a dice being odd is 1/2 and the same is for it to be even. Since the result of the dices are independent, we have that

P(E) = (1/2)² + (1/2)² = 1/2

Out of the 36 possible outcomes for the dice (assuming that you can distinguish between first and second dice), there are 11 cases in which one dice is a 6 (if you fix 1 dice as 6, there are 6 possibilities for the other, but you are counting double 6 twice, so you substract one and you get 6+6-1 = 11). Since all configurations for the dices have equal probability, we get that

P(F) = 11/32

The probability for the second dice to be equal to the first one is 1/6 (it has to match the same number the first dice got). Hence

P(G) = 1/6

for EF, you need one six and the other dice even. For each dice fixed as 6 we have 3 possibilities for the other. Removing the repeated double six this gives us 5 possibilities out of 32 total ones, thus

P(EF) = 5/32

If one dice is 6 and both dices are equal, then we have double six, as a result there is only one combination possible out of 32, therefore

P(FG) = 1/32

If both dices are equal, in particular the sum will be even, this means that G= EG, and as a consecuence

P(EG) = P(G) = 1/6

6 0

3 years ago

Can someone show me how I can do 2100 divide 35 pls without calculator

snow_tiger [21]

Answer:

Count by 35 until you get to 2100

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

PLEASE HELP ME ASAP!! I WILL GIVE BRAINLIEST!

sergey [27]

Answer:

25/12

Step-by-step explanation:

3/1.2= 5/6 ÷ x

2.5 = 5/6 ÷ x

x= 2.5 × 5/6

x = 25/12

7 0

3 years ago