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slavikrds [6]
3 years ago
5

Depending on the day of the week, a border guard searches every nth person coming across the border. Each Tuesday every 7th pers

on is checked. What is the name of this method of sampling?
a. Simple Random Sampling
b. Systematic Random Sampling
Mathematics
1 answer:
ELEN [110]3 years ago
3 0
Systematic Random sampling
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Solve the inequality 2n – 1 < 39​
MatroZZZ [7]

Answer:

n < 20​

Step-by-step explanation:

2n – 1 < 39​

Add 1 to each side

2n – 1+1 < 39+1

2n < 40

Divide each side by 2

2n/2 < 40/2

n < 20​

3 0
2 years ago
-4=b/2 <br> a)-8<br> b)-2<br> c)2<br> D)8
Kitty [74]
Answer : A {-8}

-4 = b/2

-4 *2 = b

-8 = b
7 0
3 years ago
Solve for x. PLEASE HELP ASAP WILL GIVE BRAINLIEST ANSWER
murzikaleks [220]

Answer:

x = 2.6  

Step-by-step explanation:

To find x, you need to find how many times you need to multiply 25 to get 65. Using reverse operations will make this easier. 65 / 25 = 2.6. We can check this by multiplying 25 by 2.6, and we get 65.

3 0
3 years ago
A Food Marketing Institute found that 39% of households spend more than $125 a week on groceries. Assume the population proporti
Anuta_ua [19.1K]

Answer:

0.6210

Step-by-step explanation:

Given that a Food Marketing Institute found that 39% of households spend more than $125 a week on groceries

Sample size n =87

Sample proportion will follow a normal distribution with p =0.39

and standard error = \sqrt{\frac{0.39(1-0.39)}{87} } \\=0.0523

the probability that the sample proportion of households spending more than $125 a week is between 0.29 and 0.41

=P(0.29

There is 0.6210 probability that the sample proportion of households spending more than $125 a week is between 0.29 and 0.41

7 0
3 years ago
Chelsea completes 35 math problems in 7 min.
Andru [333]
Answer = 5 problems per minute

Because you do the number of problems divided by the minutes eg 35/7 = 5
3 0
3 years ago
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