\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Courses
Login
Register
Weather forecasts indicate that on any given day in June, there is a 30\(\pourcent\) chance of rain. Over a week (7 days), the random variable \(X\) represents the number of rainy days. Find the probability that exactly 4 days are rainy (
calculatrice
!
e
\(\pi\)
(
)
%
AC
sin
cos
tan
7
8
9
/
\(\sin^{-1}\)
\(\cos^{-1}\)
\(\tan^{-1}\)
4
5
6
*
\(x^2\)
\(\sqrt{\phantom{2}}\)
x
y
1
2
3
-
ln
exp
log
0
.
=
+
and round to three decimal places.)
\(P(\text{"4 rainy days"}) \approx\)
7
8
9
+
4
5
6
-
1
2
3
*
C
0
.
÷
Exit