2 years ago

Which statement about stratified random sampling is true?

1 answer:

4 0

Answer: A stratified random sample consists of choosing several strata, and each stratum is representative of the entire population.

Step-by-step explanation: well i knew this answer by studying in my math class

You might be interested in

Evaluate the following expression using the values given: (1 point)

garik1379 [7]

3(3)^2 - (-2)^3 - (-2)^3 + 5
27 - (-8) - (-8) +5
35 - (-8) + 5
43 + 5
48

4 0

3 years ago

1. Simplify: a^7/a^4

IgorC [24]

1)a^7/a^4
=a^[7-4]
=a³

2) r²s⁴t/r²st³
=s⁴-¹.t¹-³
=s³.t-²
=s³/t²

3)3x^6/18x
=x^5/6

6 0

3 years ago

The perimeter of a rectangle is 16.6km, and its area is 13.42km2. Find its length and width. length : km width : km

Otrada [13]

Answer:

l=5.12 & w=2.62

Step by step explanation:

A=l×w

13.42=lw

w=13.42/l

$p = 2(l + w) \\ 16.6 = 2(l + \frac{13.42}{l} ) \\ 16.6 = 2( \frac{ {l}^{2} + 13.42}{l}) \\ 16.6 = 2(l + 13.42) \\ 16.6 = 2l + 26.84 \\ 2l = 26.84 - 16.6 \\ 2l = 10.24 \\ l = \frac{10.24}{2} \\ l = 5.12km$

Since you have found the value of the length you can find the value.of the width.

$w = \frac{13.42}{l} \\ w = \frac{13.42}{5.12} \\ w = 2.62km$

5 0

3 years ago

A movie theater sold 1,246 tickets this weekend. If 314 tickets were sold on Friday and 529 tickets were sold on sunday

Lisa [10]

Answer:

Saturday=403 tickets

Step-by-step explanation:

1246-314-529=403

6 0

2 years ago

Mr. Smith runs a sprinkler 150 m in 14.98 seconds Steve runs his sprinkler 100 m in 10.23 seconds who’s sprinkler is faster

kap26 [50]

Answer:

steve becaise its less secinds

4 0

3 years ago