The phrase "a random amount of" is correct and usable in written English.
You can use it when referring to an unspecified or indeterminate quantity of something, often something that is subject to change or luck. For example, "The prize includes a random amount of cash!".
No matter which they moved their eyes to, a few seconds later the monkeys would receive a random amount of water.
The bug comes and goes intermittently, causing the keyboard to freeze for a random amount of time.
Mark the node as congested and broadcast after a random amount of time.
During contention of sensors if the channel is busy then ND-based sensor waits for a random amount of time and performs many backoffs.
In order to avoid collisions with other nodes, each node in level 1 waits for a random amount of time before transmitting the time_sync packet.
If no free frequency band is available in FR zone and there is still demand from PR zone users, the users will wait a random amount of time for free available BBW.
I ingested a tiny, random amount of the white powder when I first got the pills.
In order to model a mobile attacker transmitting at 2.4 GHz, we employ Rappaport's log-normal shadowing model [22] to generate simulated RSS values at a set of receivers, taking into account an independently random amount of signal shadowing experienced at each receiving device.
To ensure that a wide range of positions was sampled, that estimate was jittered by a random amount, drawn from a Gaussian distribution of space constant 25°, and the nearest speaker to that estimate chosen.
For those giving out the cards, it might also mean a more memorable use of what might otherwise feel like a small or random amount of money.
In the poison oracle, as the Azande's version of the criminal trial is known, a chicken is fed some random amount of a vegetable alkaloid: if it dies, the accused is guilty... Chickens are unswayed by racial or ethnic solidarity, cannot be influenced by inflammatory pretrial publicity, don't sign book contracts, and never conceal conflicts of interest.
