If an event has a 55% chance of happening in one trial, how do I determine the chances of it happening more than once in 4 trials?

matt roberts
2022-07-27

If an event has a 55% chance of happening in one trial, how do I determine the chances of it happening more than once in 4 trials?

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asked 2020-12-30

A majorette in a parade is performing some acrobatic twirlingsof her baton. Assume that the baton is a uniform rod of mass 0.120 kg and length 80.0 cm.

With a skillful move, the majorette changes the rotation ofher baton so that now it is spinning about an axis passing throughits end at the same angular velocity 3.00 rad/s as before. What is the new angularmomentum of the rod?

asked 2020-11-17

The coordinates of the point in the ${x}^{\text{'}}{y}^{\text{'}}$ - coordinate system with the given angle of rotation and the xy-coordinates.

asked 2022-05-30

**16.** If 2 sin2*x *- 3 = 3 cos *x *and 90° < *x *< 270°, the number of values that satisfy the equation is

asked 2022-04-01

Random-digit-dialing telephone surveys used to exclude cell phone numbers. If the opinions of people who have only cell phones differed from those of people who have landline service, the poll results may not represent the entire adult population. The Pew Research Center interviewed separate random samples of cell-only and landline telephone users who were less than 30 years old and asked them to describe their political party affiliation.

$\square $ or goodness of fit, homogeneity or independence?

asked 2022-03-17

asked 2022-04-13

Let G be a finite group with $card\left(G\right)={p}^{2}q$ with $p<q$ two ' numbers. We denote $s}_{q$ the number of q-Sylow subgroups of G and similarly for p. I have just shown that ${s}_{q}\in \{1,{p}^{2}\}$. Now I want to show that

$\underset{S\in Sy{l}_{q}\left(G\right)}{\cup}S\setminus \left\{1\right\}={\dot{\cup}}_{S\in Sy{l}_{q}\left(G\right)}S\setminus \left\{1\right\}$

i.e. that for $S,\text{}T\in Sy{l}_{q}\left(G\right)$ with $S\ne T$ we that $\mathrm{S}\setminus \left\{1\right\}\cap \mathrm{T}\setminus \left\{1\right\}=\varnothing $

asked 2022-04-26