A pencil with a pentagonal cross section has the maker's logo imprinted on one of its five faces. If the pencil is rolled on the table, what is the probability that it stops with the logo facing directly up?
Above is the diagram of a pencil with a pentagonal cross section. When you roll the pencil, it will always stop on it flat side with the corner point up. The makers logo will never be pointing DIRECTLY up.
Probability of the makers logo pointing directly up is therefore zero.
A pencil with a pentagonal cross section has the maker's logo imprinted on one of its five faces. If the pencil is rolled on the table, what is the probability that it stops with the logo facing directly up?
Above is the diagram of a pencil with a pentagonal cross section. When you roll the pencil, it will always stop on it flat side with the corner point up. The makers logo will never be pointing DIRECTLY up.
Probability of the makers logo pointing directly up is therefore zero.
Secure video calling is in high demand. As an alternative to Zoom, many people are using end-to-end encrypted apps such as WhatsApp, FaceTime or Signal to speak to friends and family face-to-face since coronavirus lockdowns started to take place across the world. There’s another option—secure communications app Telegram just added video calling to its feature set, available on both iOS and Android. The new feature is also super secure—like Signal and WhatsApp and unlike Zoom (yet), video calls will be end-to-end encrypted.
Telegram is riding high, adding tens of million of users this year. Now the bill is coming due.Telegram is one of the few significant social-media challengers to Facebook Inc., FB -1.90% on a trajectory toward one billion users active each month by the end of 2022, up from roughly 550 million today.
