goldie1324 goldie1324
  • 22-10-2017
  • Mathematics
contestada

Stat crunch in a random sample of 200 ​adults, what is the probability that less than 33​% have no credit​ cards?

Respuesta :

yminose731
yminose731 yminose731
  • 22-10-2017
the answer is 50adults
to answer this question, u can use:
is over of equals to percent over hundred.
so, 
is       %
__ = ___
of     100
so "is" is unknown which is going to be replaced by n
and of is 200
% is 30 
and 100 is 100
so,
  n      30%
___ = ___
200    100
so solve this u do cross simplify.
200x30 = 100n
5000 = 100n
n=50
so the answer is 50 adults
Answer Link

Otras preguntas

what is a possible draw back to direct democracy
602.88 rounded to 2 decimal place is ?​
PLS HELP!! i need to figure it out please ill give brainliest
Help me with this geometry problem!
Please help!! I'm in summer school and I can't fail
Uso de abreviaturas y siglas en formularios​
¿Cuál es la expresión algebraica que representa el área sombreada en la siguiente figura?
Which of the following salts are soluble in water? I. ammonium carbonate II. barium sulphate III. lead nitrate O I, II and I Il and Ill only O I and III only O
X + 2 (x + 1) + 1 in the simplest form
A circular garden is surrounded by a rectangular grassy area. The garden takes up nearly half the grassy area. The base of the grassy area is 6 yards by 3 yards